Kero Kero Bonito (sometimes shortened to KKB) are a British band from London, England. The band consists of vocalist Sarah Midori Perry better known as Sarah Bonito, producer Gus Lobban, and producer Jamie Bulled. Their name comes from the Japanese onomatopoeic words for frog croaks and a type of fish. The band's earlier music started out being influenced by J-pop, dancehall, and video game music while their music throughout 2018 was more rock and grunge oriented. They write many of their songs using a Casio SA-45 mini-keyboard. Perry raps in both Japanese and English.