The ‘GREENROOM FESTIVAL 20th Anniversary’ has revealed its fourth wave of artist lineup for the event, which will take place from May 23 to May 25, 2025, at the Yokohama Red Brick Warehouse in Kanagawa.
Since its inception in 2005, the ‘GREENROOM FESTIVAL’ has become a key event celebrating the “Save The Ocean” concept, blending music and art to promote beach and ocean culture. Over the years, the festival has grown, with the addition of events such as the ‘Local Green Festival.’ This year marks its 20th anniversary, and the festival is expanding its duration to three days, adding a Friday opening to the traditional weekend event.
The latest lineup announcement includes eight new artists, with YG Marley set to headline the festival’s opening day on May 23 (Fri). The grandson of Bob Marley and son of Lauryn Hill, YG Marley made waves in the reggae scene with his debut single, “Praise Jah In The Moonlight,” which was a major hit in 2023. Other confirmed headliners for the event include Kamasi Washington on May 24 (Sat) and Jacob Collier on May 25 (Sun), completing the festival’s three-day headliner schedule.
With a rich history and a commitment to ocean conservation, the ‘GREENROOM FESTIVAL’ promises an unforgettable celebration of music, culture, and environmental awareness for its landmark 20th anniversary.

In addition, it has been announced that Awich, Def Tech, Tommy Guerrero, and Lucky Kilimanjaro will take the stage on Saturday, May 24, while toconoma, BREIMEN, and Ai Tominoka will perform on Sunday, May 25. General ticket sales are now open on the official website.

GREENROOM FESTIVAL 20th Anniversary

Venue: Yokohama Red Brick Warehouse
Dates: May 23 (Fri), 24 (Sat), 25 (Sun), 2025
Artists:
May 23 (Fri)
YG Marley, Ovall, Kan Sano, Michael Kaneko, Nenashi
May 24 (Sat)
Kamasi Washington, RUDIM≡NTAL, Tokyo Ska Paradise Orchestra, KREVA, Awich, Def Tech, MONKEY MAJIK, RIP SLYME, The BONEZ, Tommy Guerrero, never young beach, Lucky Kilimanjaro, Rickie-G, Leina
May 25 (Sun)
Jacob Collier, The Yussef Dayes Experience, Tori Kelly, UA, Hanaregumi, Aina The End, Kroi, SIRUP, toe, toconoma, BREIMEN, Furui Riho, Ai Tominoka
Organizer, Planning & Production: GREENROOM FESTIVAL Executive Committee
Support: Yokohama City / J-WAVE / FM Yokohama / BAYFM