Music supervisor for hit TV shows including Gossip Girl, Grey's Anatomy, and Mad Men -- along with the Twilight movie series -- Alexandra Patsavas has quietly made herself one of the most influential figures in the industry, helping to break new bands and shape the aesthetics of popular drama.

Most actors who venture into music tend to do so with catastrophic results. For every Juliette Lewis or Milla Jovovich there are dozens of Keanu Reeveses (Dogstar!) and Jared Letos (30 Seconds to Mars!) churning out wretched tunes that could only be described as aural Gitmos.