Every episode of The Big Bang Theory that airs, unfortunately, brings us closer and closer to the end of the long-running CBS series after 12 seasons. One thing that the fans have in common with the series’ stars — Jim Parsons, Kaley Cuoco and Johnny Galecki among them — is the fact that everyone is getting ready to say goodbye. That point was driven home yet again with an awesome Instagram video shared by Kaley on Wednesday, February 13 of what seems to be the cast and crew’s final on-set flash mob — check out the fun video below! 

It seems that over the show’s 12 season run, this epic flash mob routine is something the cast and crew would periodically do together, taking the overjoyed studio audience completely by surprise. This particular dance was performed to “Larger Than Life” by the Backstreet Boys and Kaley described the new video as one of her favorite moments in the 12 years she’s starred on Big Bang.

In terms of goodbyes, prior to this, we got a couple of videos that Entertainment Weekly issued in conjunction with their cover story on the show in which Kaley and Johnny shared their feelings on not playing their respective characters of Penny and Leonard any longer.

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Kaley Cuoco says goodbye to Penny 😢

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As for what’s next for Kaley, the actress is certainly making sure that her career plate is full after Big Bang ends later this year. For starters, she’s providing the voice to the Joker’s ex-girlfriend Dr. Harleen Quinzel (aka Harley Quinn) on the DC Universe streaming service animated series, Harley Quinnwhich begins airing later this season. Besides voicing Harley, she’s also serving as an executive producer on the show. Even more excitingly, she will be starring in, producing and has created a limited series in the works called The Flight Attendant, based on Chris Bohjalian’s novel of the same name.

Wikipedia describes the series, which will definitely be a change of pace role for Kaley, this way: “In the TV show, flight attendant Cassandra Bowden [Kaley] wakes in her hotel room hungover from the night before in Dubai with a dead body lying next to her. Afraid to call the police, she continues her morning as if nothing happened, joining the other flight attendants and pilots traveling to the airport. In New York, she is met by FBI agents who question her about her recent layover in Dubai. Still unable to piece the night together, she begins to wonder if she could be the killer.”

Johnny, aka Leonard, hasn’t announced any post-BBT plans at this point, though he’s made no secret of the fact that he still loves the cast and crew of the Roseanne spinoff, The Conners. If that show should get renewed for a second season, you can expect his character, David Healy, to pop up, possibly on a recurring basis, which he has alluded to in recent interviews.

Jim, who plays Sheldon, will presumably continue to narrate and produce the Young Sheldon prequel to The Big Bang Theory. Additionally, he starring as Larry Simpson in the upcoming Netflix thriller Extremely Wicked, Shockingly Evil and Vile, which stars Zac Efron as serial killer Ted Bundy.

No new projects have been announced yet for Simon Helberg (Howard), Kunal Nayyar (Rajesh), or Mayim Bialik (Amy). But Melissa Rauch (Bernadette) has a film in post-production called The Laundromat. It’s directed by Steven Soderbergh and costars Meryl Streep, Gary Oldman and Antonio Banderas. In it, a group of journalists are attempting to recover 11.5 million files that will link the world’s biggest political figures to secret banking accounts that have been created to allow them not to pay taxes.

Over the next couple of months, there are obviously going to be a lot of goodbyes to come from the Big Bang Theory cast and we’ll be here to cry over them all!