Sitting a stone's throw away [who says that anymore?] from New York Comic-Con entrance is a guy that I'd definitely hire for any party or event in New York. Meet Renegade Accordion, a fantastic accordion player that has a seemingly endless line-up of geek songs in his internal songbook. I've heard everything from Star Wars themes to Mario background music passing by him in the past two days.
Check out part of Renegade's rendition of "Battle of the Heroes." Seriously, I'd hire this guy in a heartbeat.