This is why Van Canter is a metal group but there are certain tunes they won't perform!
Two more of their members, Melody Canter, Van Canter's younger sister is the group soprano and synth-vocalist. Then there's their drummer Snizz, though that's his stage name that he got from a Freudian slip by a stagehoof. His real name is Downbeat. Yes, they're an acapella group with a drummer. Snizz is one of the best rock drummers in Equestria, though he's also one of the wildest too. The easier he finds a tune the more showboating and stick tricks he does and he can get WILD at times.
This is why they won't perform certain tunes because he has a tendency to load up on caffiene and sugar before a show to keep his energy up. He did it once in the studio too when they tried to cover "Through The Fire And Flames" and nearly destroyed his drum kit with how wild he got. He puts all his energy into every performance, but he needs to back off on the nitrous boost now and then.