Maximum the Hormone!!!! A japanese rock band with a very unique sound, they're awsome!! The only thing you might not like is the fact that they sing in japanese
Quote from a tribute site:
Striking contrasts from pop-punk to funk to heavy metal sum up the sound of the band. These various styles, expertly displayed through Daisuke and Ryo's screaming vocals and the remarkable voice of drummer Nawo, who is also Ryo's sister, allow the band to fit well in several genres.