Warning: You can't un-see Mike Tyson lip-sync 'Push It'

Mike Tyson is used to competing, but clearly not in a battle of the mimed lyrics.

In a clip from Spike's Lip Sync Battle, the former heavyweight champion of the world gives, um, an aggressive performance of Salt N Pepa's Push It. There's a whole lot going on with all of the punching and shiny spandex. It's too bad Tyson pretty much forgot about the whole "pretending to sing" part of the show, though.