In case you didn't know, there's a third Pitch Perfect movie on the way this year and just in time for Christmas too.

It will see most of the cast returning including Anna Kendrick. Rebel Wilson, Anna Camp, Brittany Snow, Elizabeth Banks, Chrissie Fit, Ester Dean, Hana Mae Lee and Hailee Steinfeld, while John Lithgow, (yes, JOHN LITHGOW!) DJ Khaled, Ruby Rose and Andy Allo will be joining the cast.

Elizabeth Banks is back as producer while Trish Sie will be taking over in the director's chair.

A new behind-the-scenes trailer teaser for the movie has been released showing some snippets of the upcoming flick as well as the emotional goodbye the stars had to say to each other on the last day of filming, knowing this would likely be their last Pitch Perfect movie together.

Screenwriter Kay Cannon said a few months ago: "I think it's the end of the Bellas as we know them. If there's a Pitch Perfect 4, it will be a new crop.

"I think [the current Bellas] just know. I had the feeling when I visited set, it was like they were full of tears and like, 'How much longer can we be singing a cappella?'" she said.

Pitch Perfect 3 will be released in cinemas on December 22, and we already can't acca wait.