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

Slideshow posted in Photos | Friday, March 22, 2013

9 of 51: From left, 'The Big Bang Theory' actors Kaley Cuoco, Melissa Rauch and Jim Parsons pose backstage 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 / John Shearer / Invision for Alzheimer's Association / AP Images)

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