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

Annalynne & Angel McCord At Wet Republic

Annalynne McCord and her sister Angel McCord attend Wet Republic on April 23, 2011 in Las Vegas, Nevada.

Credit: Wire Image

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