[x] Supergroup?

From the insert of the Secretions comp.:
"Vertigo Bus is mostly Patty Herlevi... She assembled an all-star backup band in the studio to help her record this song..."

Would this fall under rule 7? If so, would Patty Herlevi be the only core member? Or would all four musicians be considered band members?

It sounds like it Herlevi may be the only core member, but more info would help. Is this the only appearance of the band?