The lineup of guest artists for BEAR NIGHT 6, ROTH BART BARON’s annual solo festival, has been revealed. The event is set for Saturday, July 19, 2025, at Spotify O-EAST in Shibuya, Tokyo.
Often referred to as “Kuma Fest,” this summer festival celebrates its sixth edition this year. Known for its large-scale full band performances, BEAR NIGHT also highlights special collaborative stages featuring guest musicians with close connections to ROTH BART BARON.
The newly announced guests are Jeremy Quartus (Nulbarich), Kayoko Yoshizawa, Hikaru Arata (WONK), and Hana Hope.
ROTH BART BARON『BEAR NIGHT 6』

Date: Saturday, July 19, 2025
Venue: Spotify O-EAST, Shibuya, Tokyo
Open: 17:00 / Start: 18:00 / Close: 20:20
Organizer: BEAR BASE
Performers:
ROTH BART BARON
- Masaya Mifune – vocals, guitar
- Tatsuya Nishiike – keyboard
- Shuta Nishida – guitar
- Yuma Takeuchi – trumpet
- Masanobu Ohtagaki – trombone
- Ryu (Ryu Matsuyama) – keyboard
- Zak Croxall – bass
- Akira Kudo – drums
Guest Artists:
- Jeremy Quartus (Nulbarich)
- Hikaru Arata (WONK)
- Kayoko Yoshizawa
- Hana Hope
Tickets:
2F General Reserved Seat ¥11,000 (Sold Out)
1F General Standing (numbered ticket) ¥8,800
1F Parent & Child Standing (numbered ticket) ¥9,900
One accompanying guardian may bring one high school student or younger.
1F Student Standing (numbered ticket) ¥1,100