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Masato Hayashi

Masato Hayashi is a rapper and the runner-up on 'RAPSTAR 2025'. He released the lead single 'In The Moment' from his upcoming album, scheduled for early September, and is set to perform at SUMMER SONIC 2026 in Osaka and a one-man live at Zepp Shinjuku.

Synthesized from 3 Yomimono stories · updated Aug 16

Masato Hayashi, the runner-up on 'RAPSTAR 2025', has been steadily releasing new music and lining up live dates. His single 'Boso Tokyo' arrived digitally on July 1, 2026, as the lead track from an album due at the end of August. A release party followed on July 5 at NEVERLAND in Shibuya, limited to 200 people, where he performed the song for the first time and distributed limited T-shirts. The music video screened on Shibuya street vision screens.

Hayashi's momentum builds on the viral success of earlier tracks. His song 'HIROYUKI' has surpassed 3 million views, and 'Ain't No Love' is also cited as a viral hit. The new album's lead single shifted to 'In The Moment', released digitally on August 5, with a music video dropping on YouTube. The album is now due in early September.

Live activity is expanding. Hayashi is scheduled to perform at SUMMER SONIC 2026 in Osaka on August 14. A career-largest solo live is set for September 23 at Zepp Shinjuku, announced as a one-man show. These dates follow the release party and mark a clear step up in scale for the rapper.

Key facts

Runner-up finish
Runner-up on 'RAPSTAR 2025'
Lead single
'In The Moment' is the lead single from the upcoming album
Album release window
Album due in early September
SUMMER SONIC 2026
Performing at SUMMER SONIC 2026 in Osaka on August 14
Zepp Shinjuku live
One-man live at Zepp Shinjuku on September 23
Viral track
'HIROYUKI' surpassed 3 million views
Release party
200-person release party at NEVERLAND in Shibuya on July 5

Timeline

Synthesized by Yomimono from the cited Yomimono stories below, each itself sourced, then editorially reviewed. Every fact links the story it came from.

Facts

Release
music_video · 2026-07-02 · 2026-07-02
Release
music_video · 2026-07-01 · JP · 2026-06-21
Announced
release party on July 5 at NEVERLAND in Shibuya · 2026-07-02
Announced
career-largest solo live on September 23 at Zepp Shinjuku · 2026-07-02
Announced
release party at club NEVERLAND in Shibuya on July 5, 2026 · 2026-06-21

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All coverage

Aug 10

Masato Hayashi Drops 'In The Moment' Video, Lead Track From New Album

Rapper Masato Hayashi released the music video for his new song 'In The Moment' on YouTube. The track, released digitally on August 5, is the lead single from his upcoming album due in early September. Hayashi is scheduled to perform at SUMMER SONIC 2026 in Osaka on August 14 and will hold a one-man live at Zepp Shinjuku on September 23.

Jul 2

Masato Hayashi Drops 'Boso Tokyo' Video, Sets Release Party

Rapper Masato Hayashi released the music video for his new single 'Boso Tokyo,' the lead track from an album due at the end of August. He will perform the song for the first time at a 200-person release party on July 5 at NEVERLAND in Shibuya, with the MV screening on Shibuya street vision screens and Hayashi distributing limited T-shirts. A career-largest solo live is set for September 23 at Zepp Shinjuku.

Jun 21

Masato Hayashi Announces New Song 'Boso Tokyo' and Shibuya Release Party

Rapper Masato Hayashi will release his new song 'Boso Tokyo' digitally on July 1, 2026, as the lead single from an album due at the end of August. A 200-person limited release party will be held at club NEVERLAND in Shibuya on July 5, featuring a guerrilla appearance by the artist and a music video shown on street vision screens.