New Artist Name & B.LEAGUE Theme Song

former GReeeeN vocal group GRe4N BOYZ has burst onto the scene with a new artist name and an exciting announcement. The four-member group has written the official theme song for the Resona Group B.LEAGUE 2025-26 SEASON, currently underway by the Japan Professional Basketball League (B.LEAGUE).

I’m very happy to be able to create a basketball song during this important season that will be the 10th anniversary of B.LEAGUE and the bridge to B.League’s innovation starting next year. I hope it will be a song that overlaps with the OTAKEBI given by the players and coaches and the OTAKEBI created by the audience at the venue!!!!– GRe4N BOYZ

OTAKEBI feat. &TEAM

Adding to the excitement, GRe4N BOYZ has collaborated with global group &TEAM as the official ambassador of B.LEAGUE 10th, resulting in the anthem “OTAKEBI feat. &TEAM”. This energetic cheering song, along with its music video featuring &TEAM members as basketball players, is set to ignite the players, spectators, and entire match venue.

Stream “OTAKEBI feat. &TEAM” now

Upcoming Album & ONE PIECE Figures

GRe4N BOYZ’s second CD album post-name change, “Ah, guys. I met you again. Ah…”, scheduled for release on February 25, 2026, includes popular hits like “Tenshi to Akuma” and “Speed”. Additionally, a chart-topping B.LEAGUE theme song “OTAKEBI GRe4N BOYZ ver.” will be featured. The first limited edition includes a 2-CD set with tour and encore songs, and plans for a “UNIVERSAL MUSIC limited set ONE PIECE figure angel ver. and devil ver.”.

CD Serial Codes & Events

CD purchases also come with serial codes for exclusive application lotteries, offering fans a chance to meet GRe4N BOYZ members and access unique event pre-orders in 2026. More information will be announced soon.

Did you know?

GRe4N BOYZ previously collaborated with popular anime ONE PIECE for the opening theme song “Tenshi to Akuma”.

Pro Tip

Mark your calendars for upcoming GRe4N BOYZ events & new releases by following their official social media channels and website.

About B.LEAGUE

The B.LEAGUE, established in 2015, is a professional basketball league in Japan. Visit www.bjleague.net for more information.

Upcoming Releases & Events

• OTAKEBI feat. &TEAM: Music Video – December 22, 2025 (21:00)
• GRe4N BOYZ “Ah, guys. I met you again. Ah…”: Album Reservation Start – December 22, 2025 (Monday)
• GRe4N BOYZ “Ah, guys. I met you again. Ah…”: Album Release – February 25, 2026 (Wednesday)