Weekend Challenge: Ultimate Workout Song

What tunes do you listen to on your run, before a big game, or when in the gym?  Please comment below listing the song title and artist of your "go-to" song to get your game face on.  Check back later to create the ultimate playlist for your workout session based on what other readers suggest.

Not sure where to start? HealthMeUp.com has a terrific list of 5 here.