Attention haters: if the recent string of Justin Bieber freestyles popping up online wasn’t enough to get your blood boiling then check this one out. The teenage heartthrob popped up in the ‘All I Want For Christmas’ music vid duet with Mariah Carey rocking the Black/Cement Air Jordan III, one of the hottest retros of the season. No word on whether he stood in line for them or not, but chances are that a dude selling as many records as he is doesn’t mind the eBay prices. Hit the jump to watch the video (we won’t tell anyone) and let us know if he killed the fit with those leather patched pants. Thanks to brigador for the heads up.