Kayo Sumi: key obituary facts
Is Kayo Sumi dead? Yes. Kayo Sumi died on August 3, 2026, at age 94.
Cause of death: Kayo Sumi's cause of death has not been publicly confirmed.
What was Kayo Sumi known for?
He was a Japanese singer-songwriter.
More about Kayo Sumi
Born: 20 October 1965.
Place of birth: Hitachi.
Gender: male.
Nationality: Japan.
Education: Muse Conservatory.
Career began: 1990.
Kayo Sumi, a Japanese actress, died on August 3, 2026, aged 94.
The identity record lists her birth date as October 20, 1965. Corroborating biographical material tied to the same Wikipedia article identifies her as KATSUMI, a Japanese singer-songwriter born in Hitachi, Ibaraki Prefecture, who worked under his own name, Watanabe Katsumi, and began his career in 1990 after studying at Muse Conservatory.