The first official teaser trailer has dropped for the hotly anticipated third instalment of the all singing, all dancing Pitch Perfect franchise. And naturally, it's not your regular trailer with snippets of the upcoming moving edited together, instead they've put together the coolest behind-the-scenes montage of the making of the movie. And it's aca-amazing.

Pitch Perfect was the surprise breakout hit of 2012, the hilarious story of competitive college a cappella singing brought home the box office dollars and became a pop culture phenomenon on the way. Every teen girl wanted to be in the Bellas - the fictional a cappella group in the flick. Hollywood A-lister Anna Kendrick starred along with Aussie Rebel Wilson, Elizabeth Banks, Anna Camp and Brittany Snow. Numero 2 followed and was as fantastically funny and popular as the first.

Pitch Perfect 3 has a new director in the chair, Trish Sie, a Grammy Award-winning filmmaker best known for directing Step Up: All In. So we can safely assume the music and dancing will be knockout. This newest instalment stars all the original cast including Anna Kendrick, Brittany Snow, Anna Camp, Rebel Wilson and Elizabeth Banks, plus Hailee Steinfeld (who joined the cast in Pitch Perfect 2) and making his debut into the Pitch Perfect franchise is comedic legend, John Lithgow. DJ Khaled is also on the PP3 casting list taking the music cred to the next level.

Watch the trailer here:

Pitch Perfect 3 will be in cinemas December 2017

The Bellas are back in an aca-incredible 'Pitch Perfect 3' trailer