Aside from his haunting falsetto voice that echoes all around, one of HIM's most defining traits is his unexpected sense of style — tutu, leather belt, and thigh-high boots included. Of course, he takes many forms and his jagged teeth, lime green eyes, and various terrifying forms aren't always glamorous. So, for better or for worse — usually the latter — he knows how to add a little bit of flare to any battle with the Powerpuff Girls.