They wowed Hollywood with a high-profile Oscar date, posing arm-in-arm for photographs in what was largely seen as their official coming out as a couple after a year of off-and-on dating. Then Jennifer Aniston headed to Europe to promote Marley & Me and John Mayer stayed in L.A. to work on his music. And just days after Aniston returned, they were a couple no more, sources confirm to PEOPLE. "They had some disagreements and decided to not continue to see each other," says one source. "Jen is moving on with her life like she always does. She seems happy." A second source says Mayer broke up with Aniston after she returned from Europe. In the last few weeks, the former Friends star has been spending time with her close pal Courteney Cox Arquette and her yoga instructor-friend Mandy Ingber, while Mayer has been busy getting his new house ready and working in the studio. Then E!'s Marc Malkin reported rumors of a possible split. Previous Breakup This is not the first time Aniston, 40, and Mayer, 31, have split. In August 2008, they called it quits. At the time Mayer held an impromptu press conference outside his gym in New York, explaining to the media: "I ended a relationship to be alone because I don't want to waste somebody's time if something's not right." Still, lately the couple have seemed happy together. They met at a 2008 Oscar party last year, and were one of the hottest couples at this year's show after a surprise appearance by Aniston as a presenter, with Mayer as her date. Mayer later said he was there to offer moral support to his girlfriend. In a recent interview, Aniston said she didn't believe any relationship was perfect, or was meant to last a lifetime. "Whoever said that every relationship has to last forever?" she told the U.K.'s Mail on Sunday's You magazine. "That's hoping for too much."

It looks like Whitney Port may be starting out next season single in "The City." Us magazine reports the reality star and her rocker beau broke up. "Whitney and Jay [Lyon] are broken up as of 'The City' season finale," show creator and executive producer Adam Divello tells the mag. "There were a few factors in their relationship that led to their split and fans saw those play out on-air. As we pick up where we left off when the show returns later this year, viewers will see what unfolds as we continue to tell Whitney's story." For her part, Whitney says, "It's really difficult. Put yourself in this position. It's hard to have an intimate relationship no matter what, whether there are cameras there or not, so it's not the most natural thing. It kind of speeds [the relationship] up. It takes a lot of the spontaneity out of it."

career has come with a cost of $2.7 million in legal fees, the Los Angeles Times reports. A sizeable chunk of the total was the $417,000 price tag for legally ending her 2 ½-year marriage to Kevin Federline, and the subsequent custody battle over their children. Attorneys for the singer's father Jamie Spears filed a document Monday showing how much his court-ordered control of her business and personal affairs has cost so far. Fees were split among 17 lawyers and firms, including $1 million for Spears's own attorneys. That amount, said the attorneys, covered the "complex and challenging" issues the singer has faced in getting her life back on track. "Since the initiation of the conservatorship, as a result of the concerted efforts of Mr. Spears as well as the professionals involved, all aspects of Ms. Spears's life have been stabilized and continue to improve," lawyer Geraldine Wyle wrote. She added that the singer's mental health continued "to mend," that she had regained "substantial visitation" with her children and that her career "has been revitalized."

"The Real Housewives of New York City"'s Luann de Lesseps and her husband Count de Lesseps have split. Viewers of the show have noted the couple barely spend time together, however it is unclear if the couple are separating legally or taking some time to work things out. Now comes word from the de Lesseps camp that the two will continue to remain friends despite the current split. A rep tells ET: "It is obviously a very difficult time for The Countess and Count but they plan to remain friends and their primary focus will be to do what is best for their two children."

A week after Lindsay Lohan and Samantha Ronson's dramatic split, a friend of Lohan's says the star is "heartbroken." "Sam and Lindsay are speaking," the source tells PEOPLE. "But Sam has begged Lindsay to get help." "Lindsay, despite appearances, is insecure and has relied on Samantha and their relationship to build her up," explains the pal. "Lindsay barely sleeps, which explains a lot of her behavior. She's exhausted. She can't even sit down for a minute without pacing around the room. It's really sad." Since Ronson broke up with her last week in Los Angeles, Lohan has kept busy: Thursday night, she was spotted at the Chateau Marmont before meeting up with friends at Bar Delux, where a fellow club-goer reported, "her mood was frantic. She looked worn out, and really skinny." A source also tells PEOPLE that "Lindsay continued partying after Delux that night." Friday night Lohan laid low while Ronson deejayed a party in San Francisco. Lohan's tendencies for erratic behavior have sparked concern among Ronson's friends that Lohan might act out, but her friend says that she is not the only one to blame for the former couple's intense dynamic. "While Sam doesn’t want to deal with the drama, in a sick way she is obsessed with this part of Lindsay's behavior," the friend says. "It's like she doesn't want it, but when Lindsay stops writing, she begins to miss it." Despite her difficult week, Lohan has discovered a silver lining in the support she's received from her younger sister Ali. "Lindsay never realized until this happened how important her sister was to her," the friend says. "Through all of this, her sister has been there for her and coaching her through it. Lindsay doesn't even know what she would have done without her."

On Easter Sunday, Mel Gibson attended Mass at the Roman Catholic church he had built in 2005. His wife wasn't with him. And after the service, he quietly spoke to some parishioners. "Well," he was overheard saying, "she's filed for divorce." Last Thursday – the day before Good Friday – Robyn Gibson, 53, his wife of 28 years, signed divorce papers, seeking joint custody over their minor child, Thomas, 9, and spousal support. That wasn't the only surprising news. A source confirms to PEOPLE that Gibson and Robyn actually have been separated for three years. The split was around the time that Gibson had reached a personal nadir when he was pulled for a DUI in Malibu. The movie star regained his sobriety after the notorious roadside incident in which he made anti-Semitic remarks that he later apologized for. "They'll do this amicably," says the source. "There's a lot of mutual respect and they've worked hard on their marriage and worked hard on their separation." Adds the source, "They'll handle the divorce in the same respectful way." In fact, Gibson and his estranged wife attended church together with other family members on Palm Sunday, just four days before Robyn signed the divorce papers, PEOPLE has learned. In addition to Thomas, the Gibsons have six older children: Milo, 19, Louis, 21, William, 24, twins Edward and Christian, 26, and daughter Hannah, 28.

A source close to Mel and Robyn Gibson – who this week announced they were divorcing after 28 years of marriage – says that the atmosphere in the couple's home was often a giveaway that things were not right between the couple. "The tension between Mel and Robyn was obvious. Even during family dinners, they wouldn't speak sometimes. Robyn would pretend that everything was perfect. No one would ever dare to ask her how she and Mel were doing," the source tells PEOPLE. The problems seemed to become evident three years ago. "During the summer of 2005 the whole family had a great time hanging out at the Gibsons' Malibu beach house, but at the beginning of [2006], Mel started having severe depression and went back to drinking massive amounts of alcohol. It was all very stressful for his wife," says the source. "At the same time, Mel was under tremendous pressure while filming [his epic Central American drama] Apocalypto in Mexico. The movie got delayed because of terrible rainstorms, and Mel and his crew stayed in the Mexican jungle for weeks during bad conditions. Mel's drinking got out of control because it was very difficult for him to deal with the pressure of producing the movie." The source adds: "Mel's family had no control over his drinking and were instead afraid of his bad, unpredictable temper." At that time, "Mel rarely left the house [on location] for other things than business meetings." In papers filed this week, Mel lists the date of the couple's marital separation as Aug. 26, 2006 – less than a month after his profanity-laced DUI arrest. (Robyn has not specified when the couple separated.) 'Complete Opposites' In terms of their personalities, "Mel and Robyn had always been complete opposites," says the source. "Robyn doesn't drink and wants to have a 'dry' home for their kids, while Mel likes to goof around. Robyn has always been very strict, rigid and at many times very intimidating." As parents, the Gibsons, both 53, were strict with their seven children: sons Thomas, 9, Milo, 19, Louis, 21, William, 24, twins Edward and Christian, 26, and daughter Hannah, 28. "Their kids are not in any way spoiled Malibu brats. All the kids had to work if they wanted money," says the source. "While Mel, in the past, spent most of his time working, Robyn always kept their kids on a schedule and was always in charge of everything. She did an incredible job, but as an outsider it's easy to feel that she could be a bit warmer and less rigid when it comes to the kids," the source also observes.

The 27-year-old actress Natalie Portman is firmly denying rumors that she and reigning Best Actor Sean Penn are an item. "Sean Penn is a friend and colleague," the star of the upcoming New York, I Love You said in a statement to Extra Friday. "The reports that we are romantically involved are completely untrue. I normally do not respond to rumors about my private life, however, this repeatedly fabricated story has forced me to do so." And the rumors have been out there—a tabloid report that the May-December duo were canoodling in a West Hollywood bar barely two weeks after Penn, 48, filed for a legal separation from his wife of 13 years, Robin Wright Penn, metamorphosed into full-fledged "they're together" stories. We know that Penn and Portman served on the 2008 Cannes Film Festival jury together, but otherwise...only anonymous sources are claiming to know anything else. Portman split up with folk-rock singer Devendra Banhart last fall.

Bradley Cooper has the approval of his family for his rumored romance with Jennifer Aniston. The only problem: he and Jennifer Aniston aren't dating. Despite reports this week linking him to the Friends star, the rumors are far from true, says Cooper, 34. "I met her 3 times in my life," Cooper, soon to star in The Hangover with Heather Graham, told PEOPLE in Las Vegas Friday at a charity poker tournament at Caesars Palace. "I'm very flattered." "My mom loves it, but unfortunately it's not true," says Cooper, who split with actress Jennifer Esposito after four months of marriage in 2007.

Sean Penn's differences with Robin Wright Penn apparently aren't so irreconcilable. Yet again. For the second time in the past two years, the Oscar-winning actor and his missus are attempting to patch up their rocky relationship. The 48-year-old Milk man dispatched his lawyers to California's Marin County Superior Court this week to retract his request for legal separation, which he originally filed April 24. "I can confirm papers for legal separation have been dismissed and there are no papers in the court system any longer,” Penn publicist Mara Buxbaum tells E! News. "It was an arrogant mistake," Penn, who's in New York shooting the political drama Fair Game, told the New York Daily News. There was no immediate comment from Wright Penn, 43, who is a juror at the Cannes Film Festival. The Penns met in 1990 and tied the knot in 1996. It was Wright Penn who initially decided to deep six their union, filing for divorce in December 2007, citing irreconcilable differences. But by April 2008, the duo had the divorce dismissed. The reconciliation didn't stick, however, and last month it was Penn's turn to go to court. He requested legal separation and joint custody of their two children. Just last week, Natalie Portman issued a statement refuting rumors that she and Penn were romantically involved.

"Lost" actress Emilie de Ravin and her husband are ending their three-year marriage. The 27-year-old Australian beauty and her husband Josh Janowicz have filed for divorce, reports People.com. "They have recently been living separately and remain friends," her rep says. The Web site says that de Ravin and Janowicz married in June 2006 after dating for four years. The actress is slated to star alongside Robert Pattinson in the upcoming film 'Remember Me.'

Mel Gibson's soon-to-be ex-wife doesn't want anyone peeping at her payback. Robyn Denise Moore-Gibson has been granted a request to keep the details of the dueling couple's divorce case confidential. The protective order covers expert witness reports, tax returns and financial records, as well as videotaped depositions and other family-related material. Team Mel backed the move, which also prevents the Gibsons from discussing the case publicly. In other words, we won't be privy to all the details, like how much the star is actually worth—reportedly upward of $900 million—and how much his missus is requesting to keep for herself. The pair signed the agreement in April, but it was not granted by Los Angeles Superior Judge Frederick Shaller and filed by the court until June 5. Robyn initially filed for divorce from her husband of 28 years in April, admitting that the two had been living apart for nearly three years. Gibson's current girlfriend, Oksana Grigorieva, is pregnant with the actor's eighth child.

Are Paris Hilton and Doug Reinhardt splitting up? According to People.com -- yes! "In response to the inquiry on whether Paris Hilton has split up with Doug Reinhardt, yes, this is true they are no longer together. They remain friends and ask that you please respect their privacy," Paris' rep tells People. Paris, 28, and Doug, 24 had been an item for six months, according to the mag.

Usher has filed for divorce from wife Tameka Foster Raymond. The R & B star filed the petition Friday in Superior Court in Atlanta, court records show. The couple, who got married in August 2007, have two sons together, Usher Raymond V, 18 months, and Naviyd, 6 months. Usher, 30, and his wife of nearly two years, 38, have been leading separate lives for months, sources tell PEOPLE. The singer has been away from home often recording his next record in Las Vegas, one source says. "He's done his best to keep Tameka away," says the source. Another source told PEOPLE that Tameka has been focusing on keeping her family happy. The night before Usher filed for divorce, his wife was spotted at a screening of Eddie Murphy's new movie, Imagine That in Atlanta with the couple's eldest son, and two of her sons from her first husband. Tameka, who was wearing a gray shirt, tight jeans and high heels, "was happy and smiling," says an onlooker. The night his divorce papers were filed, Usher spent a low-key night at the Los Angeles club MyHouse. He arrived late and came in through the back then was seated at a table where he spent time with a few friends chatting and drinking. The singer, who was smiling and talkative, seemed to be in a good, but mellow mood.

R&B singer Chris Brown has pleaded guilty in the US to one count of assault on his former girlfriend, pop star Rihanna. The last-minute plea deal came before a hearing at a Los Angeles court at which Rihanna was due to give evidence. After the hearing, his lawyer said he was looking at it as an opportunity "to get his career back on track".

The clock has run out on Jessica Simpson and Tony Romo's relationship. Jessica's 29th birthday was on Friday and she had planned a Barbie-themed birthday bash to celebrate. But she wasn't in a festive mood after Tony broke up with her the night before the party. "She was surprised. She wouldn't have planned a party if she knew this was coming," a source close to Simpson tells E! News. "They're both going their separate ways." A bummed-out Jess canceled the fete, but Tony went clubbing that night... He hit MyHouse with a group of 14 friends on her birthday. An onlooker tells E! that "quite a few girls stopped by his table." On Saturday, Tony was spotted hanging poolside with pals at the Roosevelt Hotel. Despite the birthday breakup, Jess seems to be keeping the faith. "Everyone needs to know that hope floats...grab the strings and pull it back to you," she twittered on Sunday. Maybe she should call her ex-hubby, Nick Lachey, who's also newly single, for some moral support?

The 2-year marriage of Amy Winehouse and Blake Fielder-Civil came to a formal end in a functional first floor courtroom in London Thursday. As one of 25 couples seeking to dissolve their marriages, Fielder-Civil, 27, was granted the divorce from Winehouse, 25, in a hearing that lasted all of 75 seconds, as the singer admitted adultery, court papers show. Neither she nor Fielder-Civil were at Court Three of the High Court Family Division in London's Holborn area to hear District Judge Michael Segal grant the "quickie" divorce. In a question-and-answer format, the court papers show that it was Fielder-Civil who filed for the split. Asked if he finds it "intolerable" to live with Winehouse, he replies, "Yes." And when asked to "state briefly your reasons for saying that the respondent has committed the adultery alleged," he answers, "The Respondent confessed the adultery to me in April 2008." The papers show they have not lived in the same household since that date. In her response, Winehouse is asked if she admitted "the adultery alleged in the petition." She answers a simple "yes." She adds that she is not intending to defend the case. The couple married in Miami May 2007. First talk of a divorce surfaced in January, when Fielder-Civil, a music-video producer, signaled he would start proceedings. The singer initially said she would not let it happen. Unless a dispute arises, the divorce will become final in six weeks.

Four months after reports surfaced that LeAnn Rimes and Eddie Cibrian were allegedly having an affair, and the country singer is no longer living with her husband, Dean Sheremet. "Le and Dean have been separated for quite some time now, but they're continuing to try and work through their relationship, a Rimes pal says. The couple married in 2002, when she was only 19. Last August (six months before their seventh anniversary), they threw a "Seven-Year Itch" party to, as Rimes put it, "remember how blessed we are." News of their separation comes days after Cibrian's wife, Brandi Glanville, said she and the actor were splitting. "Eddie is a devoted and loving father first and foremost and the speed bump he and Brandi are experiencing needs to be worked out privately for everyone's benefit," his manager said in a statement. Cibrian, 36, who is joining the cast of C.S.I. Miami this fall, has denied he was having an affair with Rimes, his costar in the Lifetime original movie Northern Lights, which they filmed last fall. In March, the Rimes pal confirmed the singer and Sheremet were having problems in their marriage, but maintained Cibrian was "not the cause," adding, "There have been issues brewing for months prior to meeting Eddie on set." The couple's Nashville home is currently on the market for $7.45 million.

According to reports Kim Kardashian [1] and New Orleans Saints running back *Reggie Bush* [2] have ended their relationship. Apparently, with both of them having major career obligations coming up—Bush is beginning training with the Saints this week, and Kim is due to begin filming the next season of Keeping Up With the Kardashians soon—the two decided it was best to go their separate ways. "Nobody cheated," a source close to the couple says. "This is just a case of conflicting schedules and their lives going in different directions." [1] http://new.shoofeetv.com/celebrity/3692/kim-kardashian [2] http://new.shoofeetv.com/celebrity/4250/reggie-bush