Justin Timberlake & Jimmy Fallon Sing an Alanis Morissette Classic (With a Goofy Twist): Watch

Justin Timberlake and Jimmy Fallon return to Camp Winnipesaukee last night on The Tonight Show, where the two "best friends forever" put a goofy spin on an Alanis Morissette classic. The awkward, curly-haired, braceface pair break the fourth wall before singing their hearts out to the song they heard on the radio, 1995's "Ironic."

Before the dorky-as-hell karaoke session (which continuously gets interrupted by camp counselor Mr. Fletcher), Fallon tries to figure out what Timberlake is going to be for Halloween. The throwback guesses include Steve Urkel, Zach Morris and Blossom.