Dave Grohl appeared on The Muppets a few months ago, and now Jack White is set to guest star on the show’s upcoming season finale. In a teaser clip from the episode, Kermit ponders his romantic troubles with Miss Piggy while singing along to “It’s Not Easy Being Green” behind the wheel of a car. As he pulls up to a stoplight, he notices Jack White listening to “You Are The Sunshine Of My Life” in the next car over. After a brief conversation, White pulls over and hops in with Kermit so the two of them can loudly sing along to the White Stripes’ “Fell In Love With A Girl” together. Watch their duet below via Entertainment Weekly.