As The Big Bang Theory comes to a close, the cast and crew celebrated with a final on-set flash mob. (The hit CBS sitcom, currently in its 12th and final season, has been known to surprise the studio audience with performances over the years.)

Star Kaley Cuoco documented the dance, set to the Backstreet Boys’ “Larger Than Life,” and called it one of her “favorite moments in 12 years.”

“Here it is! I give you (from many different angles!) our FINAL @bigbangtheory_cbs epic flash mob!” she wrote. “Our cast and crew surprised the writers, producers, and audience last night dancing to @backstreetboys Larger than Life (a song that thanks the fans).”

“Thank you @bricuoco @mandykorpinen @elizabethpetrin for choreographing this epic dance and for my crew who rehearsed for months and listened to me yap on and on about this endlessly!” she added. “It was worth it! Enjoy!!! #thefinalseason.”

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The flash mob included Cuoco and her costars Jim Parsons, Mayim Bialik, Melissa Rauch, Kunal Nayyar and Simon Helberg. Unfortunately, Johnny Galecki hurt his ankle, but Cuoco revealed that he was cheering them on from the sides.

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Ok ???? here it is! I give you (from many different angles!) our FINAL @bigbangtheory_cbs epic flash mob! Our cast and crew surprised the writers, producers, and audience last night dancing to @backstreetboys Larger than Life (a song that thanks the fans) thank you @bricuoco @mandykorpinen @elizabethpetrin for choreographing this epic dance and for my crew who rehearsed for months and listened to me yap on and on about this endlessly! ???? it was worth it!???????? enjoy!!! #thefinalseason (PS @sanctionedjohnnygalecki hurt his ankle but he was cheering us on from the sides!)

A post shared by Kaley Cuoco (@kaleycuoco) on Feb 13, 2019 at 9:46am PST

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I love this perspective from the audience of my family and friends recording the dance! ???? thank you @ashleyaubra !!! ??

A post shared by Kaley Cuoco (@kaleycuoco) on Feb 13, 2019 at 9:51am PST

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@bigbangtheory_cbs #flashmob2019 ???????? ???? ????

A post shared by Kaley Cuoco (@kaleycuoco) on Feb 13, 2019 at 9:59am PST

And even though series creator Chuck Lorre couldn’t be there in person, he made sure to catch what he could.

“Chuck Lorre was on location and didn’t wanna miss our flash mob, so he FaceTimed in to watch us dance,” Cuoco captioned a video of herself video-chatting with Lorre. “No words.”

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Yes. Chuck Lorre was on location and didn’t wanna miss our flash mob, so he FaceTimed in to watch us dance ???? no words . (Beware lots of #bts and teary vids to come during last remaining shows of #BBT)

A post shared by Kaley Cuoco (@kaleycuoco) on Feb 13, 2019 at 12:08am PST

Warner Bros. Television and CBS announced in August that the Emmy-winning series, which premiered in 2007, will conclude in May 2019 at the end of season 12.

According to Entertainment Weekly, CBS was trying to negotiate two more seasons, but Parsons was ready to say goodbye to the sitcom — and there’s no show without Dr. Sheldon Cooper. (CBS had no comment and a rep for Parsons did not respond to PEOPLE’s requests for comment at the time, but Parsons addressed the show ending with a lengthy note on Instagram, saying he will miss “all of this more than I can say and more than I can know at this time.”)

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In a joint statement, Warner Bros. Television, CBS and Chuck Lorre Productions said, “We are forever grateful to our fans for their support of The Big Bang Theory during the past twelve seasons. We, along with the cast, writers and crew, are extremely appreciative of the show’s success and aim to deliver a final season, and series finale, that will bring The Big Bang Theory to an epic creative close.”