Brie Larson. Mary Elizabeth Winstead. Michael Cera. Brandon Routh. Just your classic love quadrangle among two former couples at a packed concert. With brilliant directing and editing by Edgar Wright in his first American film, a song that (as the kids say) slaps, and pretty realistic lip-syncing by Brie as Envy Adams. This is still one of the best comedies of the last decade and this is one of the best musical numbers. I just wish this band existed. And Ramona Flowers, so she would go see them with me.