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

Kim Kardashian's Wet Republic Pool Party

She's quickly ascended the ranks as one of the best attention-grabbing stars in the entertainment world, and Kim Kardashian was selected to host the grand opening party of Wet Republic in Las Vegas, Nevada on Saturday afternoon (April 16).

Having flown to Sin City earlier in the day, the 30-year-old brunette beauty took to the MGM Grand locale area to get the pool season underway with a celebration put on by Hawaiian Tropic.

Credit: Celebrity Gossip

Holly Madison: UFC Octagon Girl At MGM Grand

Holly Madison made a guest appearance as a UFC Octagon Girl at UFC 125 - Resolution at the MGM Grand Garden Arena on January 1, 2011.

Credit: Too Lame

Holly Madison: Halloween Costume Contest Party

Always up for being the belle of the ball, Holly Madison was spotted at her Halloween contest party at Studio 54 in Las Vegas over the weekend (October 30).

The former “Girls Next Door” hottie looked darling as she posed as Sleeping Beauty for the night while playing host of the swanky soiree held at the MGM Grand Resort.

Credit: Celebrity Gossip

Holly Madison: Recycled Percussion At Studio 54

Holly Madison arrives at the grand opening of Recycled Percussion's show at Studio 54 inside the MGM Grand Hotel/Casino September 7, 2010 in Las Vegas, Nevada. Holly enters in video at 1:28.

Credit: Zimbio

Photos by Ethan Miller/Getty Images North America