RIHANNA HOSTS KATY PERRY’S BACHELORETTE PARTY AT ‘KA’

It was Girls' Night Out on Saturday as Rihanna hosted Katy Perry's bachelorette party in Las Vegas. Their party of 25 attended "KA" at MGM Grand and partied at XS (Encore) and stayed at the Hard Rock Hotel. Rihanna and Perry are posing with "KA" performers Jennifer and Cheri Haight. (Photos courtesy David Becker/Getty Images for Cirque du Soleil)

Rihanna and Katy Perry with cast members from KÀ by Cirque du Soleil at MGM Grand	Rihanna shows off her martial arts skills to Katy Perry and cast members from KÀ by Cirque du Soleil at MGM Grand	Katy Perry tries to trade hats with Marylène Hickok from KÀ by Cirque du Soleil at MGM Grand