Why does Gesù work in a CD store?

so he can send ppl to hell if they pay him any less than the cd was

Because Musica is the only untarnished gift from God that we humans have left.
o at least it was until Fall Out Boy, My Chemical Romance, and Rihanna came along.

so if a cds scratched he can click his fingers and it wont be scratched

He goes there to work over-time.. even Gesù needs a purpose as little as that :p