Ashton Kutcher went from "Punk'd" to punk during a guest hosting stint on U.S. TV skit show "Saturday Night Live" when he joined musical guest Dave Grohl as part of an aging hardcore band performing a song called "Fist Fight in the Parking Lot" at a wedding.
Kutcher also mimicked Mel Gibson on Saturday's February 6 show and played the pool boy lover of a 110-year-old woman. The actor celebrated his 32nd birthday on the show by ripping off his trousers to reveal leopard-print briefs. He said, "Happy birthday to me. There's no better way to spend my birthday."
Ashton Kutcher has previously hosted "Saturday Night Live" on April 12, 2008. At the show, the 32-year-old actor dressed up as a giant chocolate bar with clown face and killed people in horrible way for a sketch titled "Death By Chocolate".