Shirtless Justin Bieber Raps Big Sean's 'IDFWU' in Las Vegas
There are specious rumors that Justin Bieber may have had something to do with Ariana Grande and Big Sean's split, but the Biebs still remains a fan.
Prior to the big fight over the weekend between Floyd Mayweather and Manny Pacquiao (which Bieber attended), Bieber was caught on video at an outdoor Vegas club shirtless (and nearly pantless) lip-syncing to Big Sean's No. 1 Top Hip-Hop/R&B hit "I Don't Fuck With You." Points for solid commitment throughout, though we guess his upcoming Lip Sync Battle performance will be a little less PG-13.
Check out the impromptu performance below, courtesy of TMZ.