"Trading Places" is a song by American recording artist Usher, released on October 17, 2008. In "The Peanut Butter Kid", Peter notes that getting a metal detector was the second happiest day of his life, behind being chosen by Usher to come up on stage during a performance of "Trading Places". Peter tries to brush it off, noting that he fell asleep at a Tom Petty concert the previous night and decided to stay.