Kishidan (氣志團; The Knights) is a six-man Japanese yankee rock band led by Ayanocozey Show. They perform in the style of 1980s bousouzoku youth motorcycle gangs. They are famous for their regent hairstyles and matching gakuran, and their most famous and popular song is their first single, the malcontent youth anthem "One Night Carnival", a song featured in many TV shows and even in the video game Osu! Tatakae Ouendan.