'Big Bang Theory' Cast Goes Full-On 'Greased Lightning' For Alzheimer's Fundraiser

Kaley Cuoco, Jim Parsons, Johnny Galecki, Melissa Rauch, Kunal Nayyar, Simon Helberg and Mayim Bialik showed off their singing chops when they performed on March 9 at the 'A Night at Sardi's' event to benefit the Alzheimer's Association.
The group, decked out in costumes, took to the stage to perform a few songs from "Grease." By the looks of the photo Rauch posted on Instagram, she got to take on the role of Sandy while Nayyar threw on a leather jacket to play Danny.(As quoted by huffingtonpost.com)
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But Cuoco had what was likely one of the most memorable moments of the night, when she took to the stage solo to perform "Dance: Ten; Looks: Three" from "A Chorus Line." The actress rocked a pair of short shorts and a red crop top for her performance.
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She shared an Instagram photo of herself backstage, calling the song "tits and ass" in the caption, and letting followers know she totally "nailed it!"

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