merīkurisumasu! is a Japanese rock band formed in 2018. The band consists of vocalist and guitarist Yūki, bassist and vocalist Yūta, and drummer and vocalist Yūki. merīkurisumasu! is known for their energetic live performances and catchy pop-rock songs. Their music often incorporates elements of punk, ska, and reggae, creating a unique and upbeat sound. The band has released several EPs and singles, including "The Day Before Yesterday," "preview," "have we met before?," and "first things first."