Hanabi (Ikimonogakari song)

"Hanabi" (stylized in all caps) is a song by Japanese pop music trio Ikimono-gakari for their debut studio album, Sakura Saku Machi Monogatari (2007). It premiered on May 31, 2006, as the second single from the album in Japan. It was written and composed by the group's guitarist Yoshiki Mizuno, whilst arrangement was handled by Ryo Eguchi. The track was used as the seventh ending theme song for the TV Tokyo anime Bleach. This is their first song to be tied to an anime, and is an up-tempo song, the complete opposite of the previous song, "Sakura." The lyrics reflect on past relationships, friendships, and moments, suggesting that these memories, like fireworks, may have faded, but their impact remains.

Met with mostly positive reviews from music critics, the song became a commercial success. It debuted at number five on the Oricon Singles Chart, becoming the group's first top ten single. The song was certified gold by the Recording Industry Association of Japan for shipments and digital sales of 100,000 units, shifting 200,000 units in Japan. An accompanying music video was directed by Takahide Ishii, which is mostly produced using CG animation. In order to promote the single, Ikimonogakari performed it on several nationwide concert tours, and added it to greatest hits albums including Ikimonobakari: Members Best Selection (2010) and Chou Ikimonobakari Tennen Kinen Members Best Selection (2016).