Of course, none other than the roast master himself, Kevin Hart, has been chosen to roast Justin Bieber on Comedy Central. But don't expect Kevin to go easy on the Biebs. He took to Twitter wishing the pop star good luck just after Justin tweeted a pic of the roast ad. The Biebs should be a little scared, but come on, it's all fun and games! Mark your calendars for this anticipated roast because March 30th, it's going down. Check out our video to get the scoop!.