神聖かまってちゃん

Shinsei Kamattechan (神聖かまってちゃん) is a Japanese alternative rock/noise pop band from Chiba. Formed in 2007, the band consists of Noko (lead vocal, guitar, keyboard, razor), Mono (bandleader, keyboard, guitar, tambourine), Misako (drums), and Chibagin (bass, chorus).
Their music is a strange blend of pop melodies and piano with dark lyrics and punk sensibilities. Most of their songs are digitally altered by frontman Noko, who also uses heavy delay and pitch-shifting effects, like sucking helium, on his vocals.
They are well known for broadcasting their activity, including uncompromising live shows where on-stage breakages have included not only guitars but band members' bones as well, on live-steaming video sites such as stickam, peercast, and Japanese popular video sharing website Nico Nico Douga. The member of the band, Noko is particularly notorious for his eccentric broadcasting methods.