Gavin Rossdale attends Jet Nightclub at Bellagio Las Vegas on March 14, 2010 in Las Vegas, Nevada.

Katie Cassidy poses at The Bank Nightclub at Bellagio Las Vegas on March 12, 2010 in Las Vegas, Nevada.

Soulja Boy performs at Eve nightclub at CityCenter on March 12, 2010 in Las Vegas, Nevada.

Robert Kardashian celebrates his birthday at The Mirage Hotel and Casino on March 12, 2010 in Las Vegas, Nevada.

Alice Eve arrives at "She's Out Of My League" movie premiere at Planet Hollywood Resort and Casino on March 10, 2010 in Las Vegas, Nevada. "She's Out Of My League" Movie Premiere At Planet Hollywood Resort And Casino

Krysten Ritter arrives at "She's Out Of My League" movie premiere at Planet Hollywood Resort and Casino on March 10, 2010 in Las Vegas, Nevada. "She's Out Of My League" Movie Premiere At Planet Hollywood Resort And Casino

Kim Kardashian celebrates her fragrance launch at Tao Las Vegas at the Venetian Hotel and Casino Resort on February 27, 2010 in Las Vegas, Nevada.

Doug Reinhardt and Paris Hilton attend TAO Bistro at the Venetian on February 20, 2010 in Las Vegas, Nevada. Paris Hilton partied on her 29th birthday Las Vegas-style Saturday night, with beau right by her side. The socialite strutted down the red carpet (you know, just like the rest of us mark our B-days) before heading into her party wearing a white Preen dress, Christian Louboutin shoes, and a gift from Reinhardt—a pair of sparkly Chanel earrings. While there

Tommy Lee and DJ Aero DJ's at Blush Boutique Nightclub at Wynn Las Vegas on February 17, 2010 in Las Vegas, Nevada.

Reality television personalities Spencer Pratt and Heidi Montag attend Pure Nightclub on February 13, 2010 in Las Vegas, Nevada.