I was watching some footage of Avenue Q just now to brush up on the songs... The main character moves into this block in Manhattan and is constantly on the search for his purpose. In fact, even though he falls in love with this girl Kate, Princeton breaks up with her saying he needs to establish himself first. A slutty character gets in between them, but eventually they come back together in the end and he realizes his purpose on the way.
There's an asian character named Christmas Eve who has some great lines- and a song I really like called "The More You Ruv Someone" http://www.youtube.com/watch?v=Xke58bj4JZE