OST and import version

First off, this movie kicked ass! It's supposed to be campy and utterly inane, Yamaguchi Yuudai did a great job! I didn't get the official US release but the Record Explosion Triad-funded bootleg. I have to know, who is the band singing "Kick It!"? I am a HUGE J-Pop and J-Rock fan! Also, this screwy trailer for another crazed Yamaguchi Yuudai flick about hentai, garage bands, and perverts running naked in the streets is on it too. Anybody find these familiar? If so I'd really appreciate the feedback.