One of the highest grossing musical comedies of all time, Pitch Perfect tells the story of The Barden Bellas, an all-girl college a cappella group, as they compete against another group from their college to win Nationals. Here are 11 songs and mash-ups from the popular soundtrack: Bellas Finals · Bellas Regionals · Cups · Don't Stop the Music · Let It Whip · Party in the U.S.A. · Right Round · Since U Been Gone · Trebles Finals · and more.