In advance of the best part to every major summer music festival -- the sign language interpreter on the side of the main stage for headlining acts -- here is ASL expert Shelby Mitchusson giving her all to Eminem's "Lose Yourself."

You don't need to be deaf to love the passion here.

After five years as a columnist and editor at Billboard, Katie Hasty joined HitFix in 2009 for music and film reporting out of New York. The Midwest native has worked as a writer, music promoter and in A&R since 1999 and performs with her band Numbers And Letters.