KLACK plays loud punk rock and is a band better known for their anarchistic image than their music. The group has employed their own ways of protesting against corruption, injustice and the hopelessness of citizens, yet how much of it is done for attention is up to the individual to decide.
In the masses of punk bands fighting against the system, KLACK did however find their own fan base. Vocalist u has previously worked as a model for example in the street fashion magazine called Kera, which also brings its own additional flavor to the outlook of the band, whether be it positive or not. After their comeback in 2008, the band has moved on to a noticeably more pop-like sound, making their music sound like the lighter styles of visual kei.