Actress Kaley Cuoco shared Thursday the “final flash mob” in a behind-the-scenes moment of “The Big Bang Theory” on her Instagram.
"The Big Bang Theory" will end in May after season 12.
Cuoco, who plays the Penny on the show, posted the surprise dance set to the Backstreet Boys song “Larger Than Life.” She said the song thanks the fans.
The choreographing took months to prepare, Cuoco said.
The cast and crew surprised the writers, producers and the audience with the performance.
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