Serena Williams Is Single Again

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Megan Fox may have lost her role in Transformers 3 because director Michael Bay thinks she's "lost too much weight and looks too frail." Victoria's Secret model Rosie Huntington-Whiteley is said to be at the top of Bay's list as a replacement. Lady Gaga got tested for lupus. Russell Brand isn't inviting his father to his own wedding for fear that it will upset his mother, who split from him when Russell was young. Nas and Kelis's divorce was finalized, but they continue to argue over child custody and spousal support. Serena Williams and "rapper/actor" Common have split after two years of coupledom. Christina Aguilera canceled her summer tour, supposedly to give herself more time to promote her upcoming film and album, but some say the cancellation was due to poor ticket sales and a less-than-stellar response to the first single released off her new album.

Barbara Walters was planning on granting Plácido Domingo with a lifetime achievement award at tomorrow's El Museo gala, but she had to cancel due to her recent heart surgery, so Walters and Domingo's mutual friend, Oscar de la Renta, is stepping in instead. Georgina Bloomberg won the $75,000 Empire State Grand Prix with Mayor Bloomberg watching. Georgina commented: "I never ride well when he is here, and he is probably totally baffled as to why we spend money on horses … It was nice to show him that I am not terrible, or at least that my horses aren't terrible." Alex McCord commented that Kelly Bensimon's on-camera insanity (in which she called McCord a vampire and accused Bethenny Frankel of trying to stab her to death in a dream) was actually "much crazier" in real life. Sixteen days after giving birth to Bryn Hoppy, Bethenney Frankel appears to have returned to her taut pre-pregnancy physique. Despite a recent photo of Gwen Stefani cradling a protruding midsection, she's not pregnant.

Now that Kenmare's up and running, Paul Sevigny and Nur Khan are looking to take over Greenwich Street nightclub Don Hill's. After her recent split from Ryan Cabrera, Audrina Patridge was seen returning from Costa Rica with Justin Bobby. Jesse James claims Sandra Bullock was "proud" when he went to rehab. Sure. Kendra Wilkinson's sex tape is going to be released a week ahead of schedule due to high demand from her "rabid fan base." When Courtney Love's daughter, Frances Bean, went away to theater camp, Love caused a fuss when she wasn't given a sufficient role in the musical, and she had Drew Barrymore call when the other campers were picking on her.