RIP, Isabella

The death of Isabella Blow by either cancer or suicide dominated conversation at the Costume Institute Gala last night. (We've got a Costume Institute slideshow and a tribute to Blow by Harriet Mays Powell and Amy Larocca.) Tom Brokaw won't return to the anchor's seat at NBC News despite the network's slip in the ratings. While out shopping, Owen Wilson and Kate Hudson had difficulty getting into Tom Ford's new store. The widow of Dr. Robert Atkins is embroiled in a legal battle for her late husband's $100 million trust. Rosie O'Donnell is angling for the host slot on The Price Is Right. Amy Poehler and Will Arnett upgraded their West Village digs. Dan Abrams broke some cuff links, so he had to use dental floss to fasten plastic clips on his shirt. Like every other actor in New York, Cynthia Nixon will appear on an episode of Law & Order.

Nick Cannon may have proposed to girlfriend Selita Ebanks in Times Square yesterday. A lot of celebs partied at the Kentucky Derby, including newlyweds Brittany Murphy and screenwriter Simon Monjack. Also at the Derby, Michael Jordan was a friendly bookie. Warren Buffett will make an appearance at tonight's fund-raiser for the Democratic Senatorial Campaign Committee. Lindsay Lohan was caught doing coke on camera. Ted Kennedy Jr., Senator Ted's son and Representative Patrick's brother, may run for Congress in Connecticut. A lot of people are happy that Paris Hilton is going to jail. Des'ree, Black Sabbath, and Duran Duran all fared well in the BBC's poll of the "worst lyrics of all time." Jennifer Esposito filed for divorce from Bradley Cooper. Usher fired his manager, who is also his mother, and his publicist. Gisele grabbed a man's crotch, and it wasn't Tom Brady's. Liz Smith says that boss Rupert Murdoch raised $65 million to fight world poverty at a party at his Beverly Hills house.