Billy's big into independent/underground rock, specifically Mutant stuff before, well, Wanda made mutants go boom. He's got a lot of CDs off ebay and such of bands that no longer exist because Mutanttown is gone. Um-um-um, otherwise he listens to mostly electronica and techno. Also the Beatles! He's wearing a shirt that says "bleu" with some Asian-ish writing at the end of the first volume, and a logo, but I have no idea who/what it is.

Steve? Likes Jazz. He and Arnold should bond about that some day.