Last night on "America's Got Talent," a band called The Fiddleheads made it to Las Vegas with their bluegrass version of "Forget You" by Cee Lo. Bluegrass bands covering contemporary hits and even classic rock and heavy metal songs is nothing new.

As a matter of fact, there's an entire series of albums titled "The Pickin' on Series".

Listen to a few examples...

The Doors - "Light My Fire":

Aerosmith - "Love in an Elevator":

Creedence Clearwater Revival - "Suzie Q":

Neil Young - "Harvest Moon":

Beatles - "Hide Your Love Away":

Guns n' Roses - "Welcome to the Jungle":