After being treated for dehydration, Richie heads out to dinner with beau Joel Madden in Beverly Hills. Plus: Madonna & Guy, Tom & Katie and more

HIGH ROLLER

Beginner's luck or card shark? Paris Hilton wins big at the World Poker Tour Celebrity Invitational charity event in Commerce, Calif., on Saturday. When the dealer pushed the winnings in her direction, the heiress responded, "I won?" The event also brought out Vince Vaughn, Jon Favreau, Don Cheadle and Hilton's little sister, Nicky.