OKAMOTO'S have announced that bassist Hama Okamoto is leaving the band.

Hama had already stepped back from activities in April on medical advice. After discussions, the remaining members decided he should continue his recovery, while the band moves forward without him.

The exact nature of his condition has not been disclosed. Both the band's official statements and press coverage describe it in general terms such as «health issues» or «poor physical condition».

In 2024, Hama took a roughly six‑month hiatus from April to September for health reasons. In March 2026, a concert in Nagoya was cancelled because of his poor health. In April 2026, he went on another medical leave.

Looking back on their years together, Hama thanked his bandmates, whom he has known since middle school.

«Looking back, I truly believe that it was Sho, Koki and Reiji who helped shape the person I am today. Thank you all so much».

OKAMOTO'S was formed by four friends who attended the same middle school in Tokyo. The band named themselves after the renowned artist Tarō Okamoto, and all members adopted stage names featuring «Okamoto»: Shō Okamoto, Hama Okamoto, Kōki Okamoto, and Reiji Okamoto. They began rehearsing in 2006 and made their major debut in 2010, when the members were around 19 years old.

OKAMOTO'S play alternative rock, blending various styles. The band has released six consecutive albums that reached the top 30 of the Oricon charts. They have performed both in Japan and abroad, including at the JAPAN NIGHT concerts in London. Beyond their own music, the members are also known for writing songs and producing for other artists, as well as working on soundtracks for films and dramas.

Some of their best‑known tracks include HEADHUNT (2015), BROTHER (2016), «欲望を叫べ!!!!» (Yokubō o Sakebe!!!!) (2011), «Welcome My Friend» (2020), «Where Do We Go?» (2023), «90’S TOKYO BOYS», «Beautiful Days».

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