Bridesmaids star Rebel Wilson is warming up her vocal chords and doing her stretches ahead of her hosting duties at the MTV Movie Awards.
The actress rehearsed the high energy opening to the show at the Sony studios in Culver City, California, where the ceremony will take place in front of an all-star audience on Sunday April 14.
Dressed in casual exercise gear, Rebel reunited with the cast of hit musical comedy Pitch Perfect to practice the musical mash-up that will open the show.
The details of number are top secret but the cast clearly enjoyed being back together to perform the musical number, with Mindy Project star Anna Camp snapping pictures of the group, including Skylar Astin, Hana Mae Lee, Ben Platt and Brittany Snow, on her phone.
Rebel gave her lungs a work out practicing the song and dance routine that pays homage to some of the biggest movies of the past year.
At the rehearsal the seats were filled with photographs of the famous faces that will occupy them on Sunday but on show day the comedian will perform in front of Bradley Cooper, Jamie Foxx, Selena Gomez, Will Ferrell, Emma Watson and many others.
Brad Pitt is among the long and glittering list of celebrity presenters. He will appear at the ceremony to hand over the Movie of the Year Gong.
Also on the list of star presenters are Kim Kardashian, Zac Efron and Star Trek stars Chris Pine, Zoe Saldana and Zachary Quinto.
The ceremony will be shown on MTV UK on April 15 at 9pm.