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

Slideshow posted in Photos | Friday, March 22, 2013

1 of 51: From left, actors Kunal Nayyar, Melissa Rauch, Jim Parsons, Mayim Bialik, Simon Helberg, from the cast of 'The Big Bang Theory,' and Alzheimer's Associatin's Laurie Grad arrive 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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