S05E16: The Devil's Hands Are Idle Playthings

Fry, in an effort to win Leela's love, makes a deal with the Robot Devil to become a gifted musician. He has tried to take Holophoner lessons, but his teacher claimed he had "stupid fingers." Bender realizes that the Robot Devil is the only one to help. Fry makes a deal only to regret it immediately as it comes with a hefty price.