One Ok Rock is a Japanese rock band formed in 2005. The band currently consists of vocalist Takahiro Moriuchi, guitarist Toru Yamashita, bassist Ryota Kohama, and drummer Tomoya Kanki. Former members include drummer Yu Koyanagi and guitarist Alexander "Alex" Reimon Onizawa. They play varied styles of music, with songs ranging from alternative rock and emo to post-hardcore and pop-punk.
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