Yesterday, the audio of "Memories," the first single from Weezer's upcoming eighth album Hurley leaked online; in response, the band posted another version of the song, with a surprise twist: As initially speculated on the AllThingsWeezer.com message board, the MP3 in question is actually a remix of the song with gang vocals provided by the Jackass crew. Frontman Rivers Cuomo explains the collaboration to the LA Times:

"I showed up a little late and I pulled up in front of the house, got out of my car, and the studio is way in back of the house, about 100 yards away from the street, and I could hear them from inside the studio resonating through West L.A.  It's funny, there's about 30 people there, little kids, parents, and it's just this giant bizarre family scene. I was actually kind of surprised at how timid the "Jackass" guys were, because they do such terrifying stunts on the show, but it seemed like some of them were kind of afraid to sing in front of other people.  It's been great getting to work with Johnny Knoxville from time to time, because we were all friends with him when before he had any success and before Weezer got off the ground."

The song is scheduled to appear in the movie Jackass 3D, which opens Oct. 15; Hurley drops via Epitaph on Sept. 14. You can hear the original version of the song below.

Weezer - Memories by Hypetrak