I'm sure someone's already posted these:

http://www.youtube.com/watch?v=7J96XzQRXFY&NR=1 - the Count ****s Ernie's blocks
http://www.youtube.com/watch?v=fgO7-Y84jkk - the song of the Count (censored)
http://www.youtube.com/watch?v=W7IxliAPjAk - Tickle Me Emo

And getting away from Sesame Street...
http://www.youtube.com/watch?v=8pUrsUORF4Y - Terminator meets Jesus