Kiefer Sutherland's Headbutt, Rihanna's New Pal

• The drama surrounding fashion's most famous headbutt continues: Kiefer Sutherland says he was "defending the honor" of Brooke Shields by attacking Jack McCollough, since Jack had knocked Brooke over and then failed to apologize. Brooke and Jack, however, say the push never even happened, and Kiefer was running around drunk and "looking for something to smack." The police are now investigating the matter, since apparently there aren't more important crimes to be tackling right now. [TMZ, TMZ, NYDN, P6]
Anna Wintour and Rihanna were acting like old pals at a Costume Institute afterparty on Monday night, which certainly bodes well for Rihanna's chances of landing a Vogue cover in the future. [NYDN]
• Lindsay Lohan was supposed to chaperone her little sister to a party at LA's Roosevelt Hotel on Monday night, but ended up "getting up close and personal" with ex-boyfriend Jared Leto instead. [E!, P6]
• Casey Johnson, meanwhile, showed up to the same party and was overheard telling a friend that she and Courtenay Semel have broken up, again. [P6]

• Brad Pitt and Angelina Jolie are breaking up! At least that's what the National Enquirer is now reporting in a dubious story even by the National Enquirer's embarrassingly low standards. [NE]
• Russian officials are "up in arms" about Madonna's upcoming concert in St. Petersburg, which they're already calling a "natural disaster." [P6]
• Chace Crawford has been invited to attend the White House Correspondents Dinner as a guest of Fox News on Saturday. [Us]
• Miss USA officials say they're investigating whether Carrie Prejean violated her contract by posing for topless photos. [NYDN]
Mariska Hargitay might be pregnant. Or she might just be fat. [JC]
• Leona Lewis has reportedly been forced to flee LA and move back to London because of a stalker. [Mirror]
• Cameron Diaz and Paul Sculfor have reportedly broken up. [Hollywood Rag]
Alex Kuczynski's took possession of her second child last week. He's named Luke Porter Pablo Stevenson, in case you're curious. [P6]
• A woman who starred in Michael Jackson's "Thriller" video is suing him over unpaid royalties. [TMZ]
• A judge has ordered Debbie Matenopoulos' ex-husband to cough up $3,595 a month in spousal support. [Radar/National Enquirer]
• Farrah Fawcett is working with NBC News on a two-hour primetime special about her battle with cancer. [E!]
• Those Jon & Kate Plus 8 affair rumors continue: Us says it's "confirmed" that Jon Gosselin has been cheating on his wife for the past three months. [Us]
• Paula Abdul is confirming that she was addicted to pain meds for 12 years, and says she can sometimes "get weird" after taking them. You think? [MSNBC]