Rush, sans three pretentious Canadians.

Who says you can’t do an a capella version of an instrumental?
This is in no way my endorsement of college a capella troupes. Under no circumstances should you ever invite me to a performance by your troop. And if you’re the kind of troupe that sings in the middle of busy hallways while people are trying to go places, I will open fire — most likely with a NERF brand weapon of some sort.