Heiress Casey Johnson and Courtenay Semel, daughter of entertainment mogul Terry Semel, are officially dating. Casey is ditching plans to move home to Manhattan so she can stay closer to Courtenay in LA. [Page Six]
Peter Cook's numerous romances post-Christie Brinkley are set to take center stage in his divorce trial this week. Both his current girlfriend, Suzanne Shaw, and former flame, Carri Lyn Ciamarra, have been subpoenaed to testify. His relationship with Bridget Nisivoccia, the interior designer who worked on his Sag Harbor manse, may also be called into question, although she describes the relationship as purely "professional." [NYDN]
How did Christie and Peter spend their long weekend? She celebrated the 4th at Billy Joel's Sag Harbor manse, while Peter spent the day with his girlfriend and son Jack on a fishing boat. [NYDN]
Andre Leon Talley had trouble buying a pair of XXL Calvin Klein thongs at Macys after the store declined him a credit card account. He came back and completed the transaction later, although his reps say he was buying Polo boxers, not Calvin thongs. [Page Six]
Anne Hathaway's "psychic masseuse" may be responsible for her doomed relationship with Raffaello Follieri. She apparently told the actress to stay with her boyfriend back when she was having doubts. Why Anne listened to a psychic masseuse is another matter. [Page Six]
Amy Winehouse says she did drugs in rehab, and now her record label has her on house arrest. That hasn't worked out very well. Amy punched a fan outside her house and her guards eventually broke things up. [NYDN, Mirror]
Artist/actress Ahn Duong and her husband Bart Quillen have split, two years after their big wedding in Amagansett. [Page Six]
Diddy almost missed his own party in East Hampton this weekend. The crowd at the front of the home was too big, so he had to enter through the back door and miss his big entrance. [Page Six]
Jennifer Lopez is going to show everyone how normal she is by working out to shed the baby weight instead of opting for surgery. [Daily Star]
Usher is so upset that his latest album hasn't sold as well as Lil' Wayne's that he's thinking about axing his manager, Benny Medina, and re-hiring his mom, who he fired last year. [Rush & Molloy]
Blind item: "Which professional athlete who's well known for playing the field with famous ladies is comforting the estranged wife of a fellow athlete as the couple goes through a divorce? The comforting was recently ratcheted up to a full-blown affair, despite the fact that he is very involved with an A-list starlet. Thankfully, the ladies live in separate states." [NYDN]
