Damn, those Sesame Street muppeteers are incredible. Big Bird was possibly one of the best Lip Sync battlers we've seen on the show, even with him beak-sync'ing, even before he pulled in the SesameStreet Pose. 🙂
I don't know if Jason Scwartsman just threw the competition, or if he just isn't that great of a syncer. I have no idea what he was doing with We didn't Start the fire, and between the fake 'stache and all the movements, he barely did anything on the second song.
The Bird, on the other hand, is Da Word. BB stole the show. I didn't watch much of the filler, but what bits I did see certainly expressed the Sesame Street spirit too, with how friendly and caring he was to everyone else.
And as I said before, even though his syncing is just a flapping beak, it was spot on. Doing all that while in that costume and doing the movements; man hats off to everyone there.