Willie Nelson peforms 'On the Road Again' for Miss Piggy Music 04/03/2016 1/2 2/2 Willie Nelson featured on The Muppets season finale to perform his classic song, 'On The Road Again'. In the episode, Nelson sings to Miss Piggy while she's in hospital. To watch the video, click here. Discover More Stories music news Dolly Parton to be inducted into the Rock and Roll Hall of Fame Dolly Parton has previously turned down her nominations "I never considered myself a rock artist." music news Paul McCartney performs virtual Duet with John Lennon during 'Got Back' Tour Kicking off the 'Got Back' Tour, Paul McCartney surprised fans with this virtual duet. News Upcoming documentary explores Marilyn Monroe's death Netflix is set to release 'The Mystery of Marilyn Monroe: The Unheard Tapes.'