The Celebrity singing "Why don't you get things started" was present, but it makes sense though. There wasn't actually an audience to start with, soon the audience had a hobo, and "Why don't you get things started" was sung by the hobo. I liked it.
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Anyway, I hope this movie gets valuable treatment, all the muppety goodness we've seen on TV/YouTube (The guest appearances, interviews, trailers, trailer spoofs). I too hope for Deleted Scenes/Behind The Scenes/Outtakes as well, I think Jason could be very well put in charge of the DVD release, maybe. If only we could write Disney and ask for a crammed packed DVD.