Samantha McDanel

Tony DeLafonte is passed out after his 21st birthday party and remains passed out to the point where his friends and family start to worry about him.

This holiday special goes back in time to show how Elmo's ancestors--not to mention those of Grover, Big Bird, Bert, Ernie, Oscar the Grouch and Cookie Monster--helped transform "the most unfriendly street in town" into the bright, kind, music-filled place it is today.