The Simpsons Se21 Ep06 Pranks and Greens

Pranks and Greens is the sixth episode of Season 21, which aired on November 22, 2009. The episode was written by Jeff Westbrook and directed by Chuck Sheetz. Jonah Hill guest-stars in the episode as Andy Hamilton.

Groundskeeper Willie tells Bart about Andy Hamilton, a former student who was an even better prankster than Bart is. Bart tracks down Andy, now 19 and still pulling pranks, and the two become quick friends.