Kevin Costner & Modern West

While Kevin Costner & Modern West haven't collected trophies from the CMAs or Grammys, their achievement lies in the simple fact of existing as a real band. Costner, already a two-time Oscar winner, put together a group that toured internationally, released three albums, and built a following without relying on his acting fame to sell records. The band's European chart success with Turn It On showed that their music could stand on its own across the Atlantic. For a side project started by a movie star, that's no small feat.