This Japanese rock band comes from Hachioji in Tokyo.
The four piece consists of Daisuke-han, Nao, Maximum the Ryo-kun and Ue-chang.
Their line-up has been the same since 1999.
The interesting thing about them is that they all do vocals on the songs.
They’re also famous for mixing loads of genres together and being pretty experimental.
Famously their songs were used as Death Note‘s anime opening and closing tunes.
Check out their official English site here.