Last year it was announced that popular US sitcom 'The Big Bang Theory' would be coming to an end this year after its 12th season.
One of the show's stars Kaley Cuoco shared a video on her Instagram of the final time the cast and crew of the show did a special ritual of theirs.
"Ok here it is! I give you (from many different angles!) our FINAL Big Bang Theory epic flash mob!" the star wrote.
"Our cast and crew surprised the writers, producers, and audience last night dancing to Backstreet Boys Larger than Life"
She went on to thank everyone for their hardwork before sharing the video... Check it out below!