Question: What plot follows Barden University's all-girl a cappella group, The Barden Bellas, as they compete against another a cappella group from their college to win Nationals, and starred an actress known for her role of Alexis in the party film "Project X"?
Sentence (from "Emocapella"): Emocapella (a portmanteau of emo and a cappella) is a collegiate a cappella group at the George Washington University, formerly all-male but co-ed since 2010.
Relevant evidence: No