Britney Spears was spotted out in Los Angeles wearing a pair of protective goggles with Jackass star Johnny Knoxville for a skit that will air on Jimmy Kimmel Live.Britney also tweeted that the stunt has been done:
"Just did my first @jackassworld stunt with Knoxville and company. Knoxville better watch his back... -Britney"Can't wait to see this!


