• 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]

• Hope you're sitting down for this one. Donald Trump Jr. and his wife Vanessa had a baby yesterday. It was a boy. And he will now bear a burden for the rest of his life: His parents named him Donald J. Trump III. [People]
• Lindsay Lohan is launching a self-tanning line called Stay Gold. Finally! [NYDN]
• "Real Housewife" Bethenny Frankel was spotted using coupons at a hair salon. [P6]
• After dating for about half a century, Harrison Ford and Calista Flockhart may finally be ready to get hitched. [Cindy Adams]
• Please note that Walter Cronkite is not related to social/art scenester Kipton Cronkite, despite his claims to the contrary. [P6]

♦ Is Kate Hudson trying to steal Alex Rodriguez away from Madonna? She was spotted with her "arms completely wrapped around" him at a party in Miami this weekend. But she might just be trying to steal Jason Statham away from his girlfriend, since the two were seen downing dirty martinis together. [NYDN, P6]
♦ A PETA activist pelted Lindsay Lohan with a bag of flour at an event in Paris on Saturday. Sam Ronson responded by dissing the activist on MySpace: "My dog is far more civilized than that person." [People]
♦ Kanye West was arrested in London on Friday after an altercation with a photographer. Now he's suggesting the entire episode was "bogus," and has upset some Brits by comparing himself to Princess Di. [People, The Sun]
♦ Sarah Palin may collect a $7 million advance if she writes a book. [MSNBC]