Jessica Simpson stops by the 'Late Show With David Letterman'

Elton John and David Furnish out for dinner

Madonna arrives at the gym

Jamie Foxx plays violin in the 'The Soloist'

Queen and Paul Rogers are talking about AIDS ahead of their Anti- AIDS concert in Kiev, Ukraine

Matthew McConaughey trains for the Malibu Triathlon on his bike

Aubrey O'Day and her dog depart the Bryant Park Hotel in New York City

Heather Graham backstage at the G-Star fashion show in NYC

Marc Jacobs and his reported husband Lorenzo Martone make out in New York City

Kerry Washington eats at Mr. Chow's

Sean Stewart smokes and eats at Mr. Chow's

Ryan Seacrest dines at Mr. Chow's in Los Angeles

Mary Carey dines at Mr. Chow's

Amanda Bynes attends the Marchesa Spring 2009 Collection for Fashion Week 2009

Kelly Rowland dines at Nobu

Supermodel Heather Christie with boyfriend actor Vincent Gallo in New York City

Cameron Diaz in West Hollywood

Kiefer Sutherland and his daughter Sarah Jude spend quality time together

Amy Winehouse in Camden

Susan Sarandon arrives for 'The Duchess' special film screening in Manhattan, NYC

Tyra Banks attend the CK Fashion Show

Leven Rambin attend the Marchesa Spring 2009 Collection

Rob Thomas seen attending the Marchesa Spring 2009 Collection

Dennis Quaid departs his Manhattan hotel in Midtown