'Big Bang Theory' cast performs 'Rocky Horror's 'Time Warp' (Photos)

Slideshow posted in Photos | Friday, March 22, 2013

20 of 51: From left, actors Mayim Bialik, Simon Helberg, Jim Parsons, Melissa Rauch, Johnny Galecki, Kaley Cuoco and Kunal Nayyar, of 'The Big Bang Theory,' perform 'The Time Warp' from 'The Rocky Horror Picture Show' at the 21st annual 'A Night at Sardi's' benefit for the Alzheimer's Association at the Beverly Hilton Hotel on March 20, 2013. ( Photo / Jordan Strauss / Invision for Alzheimer's Association / AP Images)

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