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KO1KEYZ Debuts at No. 1 on Japan Hot 100 as Vaundy Climbs Into Top 10

By Mariana A Oct 16, 2026 | 4:33 AM

Japanese boy group KO1KEYZ has made an impressive chart debut, landing at No. 1 on the Billboard Japan Hot 100 with its first single, KO1KEYZ.

The 12-member group, formed through the audition program PRODUCE 101 JAPAN SHINSEKAI, launched its career in Japan and South Korea on October 7. Its debut release sold 525,248 physical copies in its first week, supported by radio airplay, digital downloads, and music video views.

The October 14 chart also brought notable movement from several established acts. Mrs. GREEN APPLE climbed to No. 2 with Kyouhan, while EBiDAN secured the No. 3 position with Yes! Tokyo.

STU48 entered at No. 4 with Fuyufuku ni Kigaetara, followed by Ayumu Imazu at No. 5 with Musubi, which also led the streaming rankings.

Meanwhile, Vaundy experienced one of the week’s biggest jumps. His song Shiwaawase, featured as the theme for the film ALL OUR TOMORROWS, surged from No. 49 to No. 10.

The latest rankings highlight a mix of successful new releases, rising streaming activity, and growing interest in film-related music.