Holly Madison: "The Hangover Part II" Premiere

Holly Madison arrives at the Las Vegas premiere of the Warner Bros. Pictures movie, "The Hangover Part II" at the Planet Hollywood Resort & Casino May 21, 2011 in Las Vegas, Nevada.

Credit: Zimbio

Photos by Ethan Miller/Getty Images North America

Whitney Port Hosts Pool Party At TAO Beach

Whitney Port played hostess at a Tao Beach party in Las Vegas on Saturday, and showed off her bikini-ready bod. 

Showing off her funky style, Whit wore a floral bikini top and matched it with a printed wrap while topping the look off with some shades.

Credit: Celebuzz (Amanda Hasaka)

Angel Porrino: "The Hangover Part II" Premiere

Angel Porrino arrives at the Las Vegas premiere of the Warner Bros. Pictures movie, "The Hangover Part II" at the Planet Hollywood Resort & Casino May 21, 2011 in Las Vegas, Nevada.

Credit: Zimbio

Photos by Ethan Miller/Getty Images North America

Aubrey O'Day Hosts Pool Party At Liquid Lounge

Aubrey O'Day hosts a daytime pool party at at Liquid Pool Lounge on May 21, 2011 in Las Vegas, Nevada. Also pictured, Krystal Bronson.

Credit: Wire Image

Jamie Chung: "The Hangover Part II" Premiere

Jamie Chung posed next to a new "The Hangover" slot machine by International Game Technology as they arrive at the Las Vegas premiere of the Warner Bros. Also pictured, Mason Lee and actor Justin Bartha.

Credit: Zimbio

Photos by Ethan Miller/Getty Images North America

Nicky Hilton Visits The American Brasserie

Nicky Hilton was spotted at the Sugar Factory American Brasserie at Paris Las Vegas on May 20, 2011 in Las Vegas, Nevada. Also, Nicky took boyfriend David Katzenberg to Chateau Nightclub & Gardens.

Credit:Wire Image

Angel Porrino's Birthday Celebration At Gallery

Holly Madison, Angel Porrino and singer Josh Strickland attend Porrino's birthday celebration at Gallery Nightclub at the Planet Hollywood Resort & Casino on May 14, 2011 in Las Vegas, Nevada.

Credit: Wire Image

Audrina Patridge's Wet Republic Birthday Party

Showing up for a belated birthday bash in her honor, Audrina Patridge was the picture of perfection at the Wet Republic pool in Las Vegas on Saturday afternoon (May 14).

The former "Hills" hottie stripped down to a multi-colored bikini as she and a group of friends hit up the MGM Grand locale to celebrate her 26th birthday (which was actually on May 9).

Credit: Celebrity Gossip

Who Was Best Dressed At The PMOY 2011 Party

Hugh Hefner and his ladies had a party for Playboy's Playmate of the Year 2011 at Moon Nightclub at The Palms Hotel in Las Vegas.

Attendees include Hef's Crystal Harris, Bridget Marquardt, and 3 of the last 4 Playmates of the Year: Jayde Nicole (2008), Hope Dworaczyk (2010), and Claire Sinclair (2011).

Which Playmate of the Year was best dressed?Jayde Nicole
Claire Sinclair
Hope Dworaczyk

View Results

Credit: Moe Jackson

Holly Madison Gets Sloths From Wayne Newton

Wayne Newton gifts Holly Madison with a pair of sloths at Shenandoah on May 9, 2011 in Las Vegas, Nevada.

Credit: Wire Image