Galileo Galilei (ガリレオ・ガリレイ) is a Japanese indie rock band from Wakkanai, Hokkaido who debuted in 2008 after winning the teenage audition festival “Senkou Riot”. In 2009, The band signed with SME Records and released their debut song “Hanamasu no Hana” the next year which marked over 1 million downloads. Their debut studio album, Parade was released in 2011 which reached the top 5 on the Oricon weekly chart, followed by their second studio album Portal in 2012.

Their music has been featured as the theme song for various anime, such as "Aoi Shiori" (青い栞, Blue Bookmark) for Anohana, "Asu e" (明日へ, "To Tomorrow") for Mobile Suit Gundam AGE, Natsuzora (夏空) for Big Windup! Season 2 and "Climber" (クライマー) for Haikyu!! season 2.