Jane Fonda, Idina Menzel, Sia sing Fight Song a capella for Hillary Clinton - WATCH

A whole host of famous faces have united in support of Hillary Clinton - through song. The stars joined the original singer of Fight Song, Rachel Platten to sing the hit, using their voices to fill in where the instruments should be. The Pitch Perfect-inspired track aired at the Democratic National Convention in Philadelphia, and even features a few faces from the film that inspired it. Check out Fight Song below: Read more: Scottish adoption agencies encouraging same-sex couples. Beyonce and Adele lead this year’s VMA nominations.