Is that guy holding the QR code in the back at the end of the video wearing a diaper?

White Hoodie Fail at 3:29. Guy got a little excited.

I absolutely love this performance! I have to play it every work-day Friday that I have now. The guys really have turned a turd-sicle into a solid gold, fun wonder! This reminds me a bit of the production numbers you used to see in 60's TV shows hosted by classy Hollywood people. The constant layering of even more and more fun surprises made it so much fun the first time. They've really turned this into a catchy tune that I sometimes can't get out of my head. How fantastic that they raised a lot of money for charity by doing this! (I'd love to see Stephen and Jimmy do other similar stuff together, but I know that'd get old fast.) I especially crack-up at the Yeti in the back. What's that? Bricks in his hands? I can only assume the Yeti must have been in a comedy sketch earlier in the show. Hooray for the Bay City Dancers !!But seriously, why is everybody criticizing Rebecca Black when it's obviously her CRAPPY SONG-WRITERS / LYRICISTS who should be ridiculed out of a career ??

I thought that was Rob Riggle when I first saw this.

... this was his biggest and most likely final television appearance since Idol.

They took a crappy song and made it awesome. Colbert and Fallon win.