(L-R) Cast member Jourg Lemke, singers Rihanna and Katy Perry, and cast members Sami Saula and Jeana Blackman appear backstage after the singers attended "KA" by Cirque du Soleil at the MGM Grand Hotel/Casino September 18, 2010 in Las Vegas, Nevada.
(September 17, 2010 - Source: David Becker/Getty Images North America)