The Big Bang Theory cast perform EPIC flashmob to Backstreet Boys' 'Larger Than Life'

As we prepare to say goodbye to The Big Bang Theory, the cast and crew danced it out for us one last time.

The CBS comedy has a history of surprising the studio audience with dance performances over the years and series star Kaley Cuoco made sure fans all around the world saw their final performance.

Taking to Instagram, Cuoco shared several videos of the entire cast - including her co-stars Jim Parsons, Mayim Bialik, Melissa Rauch, Kunal Nayyar, and Simon Helberg - performing their final epic flash mob.

Johnny Galecki had an ankle injury, so had to cheer the cast and crew on from the sidelines.

Donning hats emblazoned with the number 12 (to mark the number of seasons The Big Bang Theory has been on the air) rocked out to the Backstreet Boys’ 'Larger Than Life.'

We think it was the perfect song to sum up the show!