When I first heard the song, I wasn't impressed (and I'll admit, I stopped listening before the song was even over), but figured, "the music video will probably be better". And I was right! This music video is so much better than the song. Almost as good as the OK GO Muppet Show Theme.
If I could change only one thing about this video (besides including every usable Muppet in some way), I would add Dr. Teeth, Floyd, and Janice (and of course Lips) to this. They seem to be the most major characters who don't appear. For most of the video I thought Animal would be the only Electric Mayhem member there (AGAIN???), but then saw Zoot.
It's also interesting how this doesn't seem to include any characters who were rebuilt for the new movie who hadn't been used in years (obviously not counting Walter, considering that was his first appearance he wouldn't have been "rebuilt" for it). Aside from Walter (and I guess Lo-Co) every character who appears in this had been consistiently used in the last decade before the movie. It would have been great to have seen at least some of the characters who were recently rebuilt for the first time in years (Link Hogthrob, D. Strangepork, Thog, Bobby Benson, J.G.). Having said that, Carl looks a little bigger than I'm used to, but I don't think I'm used to seeing him at that angle about to eat a human.
The credits state that the Snowths were performed by Steve and Eric, but most scenes with them have them in group shots that also include Kermit, Fozzie, Piggy, and Animal. I guess that means they recorded the voices (though it doesn't sound different from Frank Oz's vocals from the old Mahna Mahna recordings).
I was surprised to see only two additional Muppet performers credited, but then again, David Rudman and Matt Vogel only get two credited characters each. Considering Janice doesn't appear and I didn't spot Scooter until the end I started to think Scooter wouldn't show up (and wondered if David wasn't available for this, though they could have had somebody else perform his characters if he wasn't there). I guess they lent their hands to various extra characters in the group shots. It's a shame more of Jerry Nelson's characters didn't show up.
When we first see Santa's feet, I was expecting it to be Sweetums in a Santa costume (how come a gag like that has never happened?). I don't even know who that celebrity is (I know, the credits say Craig Robinson plays Santa, but I'm still thinking, "who?").
I don't know how I feel about a music video having credits (as in an on-screen title and regular ending credits, as opposed to the usual music video credits that just list artist name, song title, album title, record company, and director). I feel the same way about the Weird Al Yankovic music videos that were animated by Jib Jab, which have the Jib Jab logo at the beginning and (in the case of "Trapped in the Drive Thru) a title card.