No, this isn't some scandalous paparazzi video! C'mon, who actually works out naked? And don't you think Chuck would have been able to see the lensmen camped out in the bushes?

UFC fighter Chuck Liddell and his smokin' hot girlfriend Heidi Northcott shot this video as a viral ad campaign for Reebok. And yes, Reebok is one of Chuck's sponsors - who else do you think supplied the sneakers for the otherwise X-rated shoot?