Harper

Harper is a Sonus from the planet Operu in Ben 10: Unlimited Power.

Origin
Harper's early life is unexplored, but it was confirmed he was a Sonus who wanted to destroy all pop/rock bands, as he found the music unbearable. He uses a technological guitar to project his deadly music (really soundwaves) to a certain topic. He choses to hide his alien origin by wearing an ID mask.

Appearances

 * Big Time Crush
 * Ben 10: Ultimate Crossover