trying to come up with an idea for a theme party

I'm getting under a little (self imposed) pressure to come up with a musical theme for a party in two weeks; something I can throw together quickly; I often get myself in these predicaments. It will either have to involve canned music, or music trivia, or both. I don't know where I can quickly gather such a beast. I may have to scour a store (gasp!) for a boxed game.