Talk about taking the plunge: future bride Katy Perry donned a sexy white bikini at her bachelorette pool party in Las Vegas this weekend, and RadarOnline.com has the pics.
The Teenage Dream singer threw her wild pool party at the Hard Rock Hotel Beach Club on Saturday, and fellow singing star Rihanna, wearing a bright red wig and a sparky gold one-piece, was among the pals taking a dip with Katy and enjoying a few cocktails.
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Perry, 25, is engaged to British beau Russell Brand, 35. The couple will tie the knot this fall.
Next up for Katy: she's the special musical guest for the season premiere of Saturday Night Live, hosted by Amy Poehler on September 25.