Wow. I am impressed and perhaps a little frightened by these videos.
This enterprising fellow got some of the old musical robotic bears (and a gorilla too) from an old Showbiz Pizza place, and now reprograms them to do modern rock songs, like this one from Evanescence. More videos of other songs are also provided.
He's even got a stage and curtains and some major programming skills. (via MetaFilter)