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"The Big Bang Theory" stars put their talents on display for a good cause.

Jim Parsons, Johnny Galecki, Melissa Rauch, Kunal Nayyar, Kaley Cuoco, Simon Helberg and Mayim Bialik all hit the stage at the Beverly Hilton Hotel on Wednesday to put on a show for the 24th and final "A Night at Sardi's" event to benefit the Alzheimer's Association. "We'll always be together," Rauch captioned a cute pic of her co-stars.

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The cast happily got into costume to sing a few numbers from "Grease," but Cuoco may have stolen the show with her scantily-clad performance.