Nickelback
A finite number: one to perform the task and the remainder to act in a manner stereotypical of the group in question.
Because she's a cover thief.
Hey guys, why don't we try one of my songs
Because the drummer locked himself in the car with the keys.
Trick question! There's no such thing as Nickelback fans. (I will be hated by few)
Mount Rushmore. Or Nickelback. I'm so sorry.