This New "Justin Bieber on CSI" Promo Is Even Creepier Than the First One Matt Cherette · 09/07/10 01:08PM Remember that CSI promo from a few weeks ago that featured but a glimpse of Justin Bieber, who will guest star in the season premiere? Well, there's a new one out, and it's even creepier—and Bieber-filled!—than the first!