Rihanna And Katy Perry: Bikini Beach BFF

Rihanna and Katy Perry showed off their bikini bodies in Barbados on Tuesday.Katy Perry's peeps confirm to "Extra" the girls are good friends and Katy is in Barbadoes to promote her current tour."We're friends and we're both kind of on this crazy roller coaster, and... it's nice to have good girlfriends. I pride myself on having cool chicks in my life, and she's a cool chick," According to MTV,