Quote Originally Posted by Razade View Post
Wagekki Band may be a bit strange, especially if you're not into non-English singing but they're a Japanese Folk Rock band. I love them. They did a lot of covers of Vocalaid songs in their early work. Senbonzakura is probably their most famous.
Wagakki band are great.

Babymetal has already been mentioned, so other bands that might be suitable:

Blood Stain Child is a great melodic death metal with electronic/trance influences and their Epsilon album at least is in English.

Doll$boxx is a combination band with Fuki (formerly of powermetal band Lightbringer) and hard rock band Gacharic Spin. Take My Chance is probably their most famous song that did the rounds a few years ago in English circles.

High and Mighty Color were a hard rock band, best known for Ichirin no Hana, used as the opening to the anime Bleach.

Tengger Cavalry are a Mongolian folk death metal band that I quite enjoy, combining metal with traditional Mongolian instruments and throat singing.