Chip Cheezum/WMG
Chip's real name is Hank.
Chip and/or Ironicus was/were once in a high school production of The Music Man.
They've made reference to it on multiple occasions over the past few years and while The Music Man is a fairly well-known show, it doesn't seem like the kind of thing they would be so quick to reference unless A) they were musical theater nerds, which they certainly don't seem to be, or B) that particular show has a reason to stick in their minds.