Gravitation (グラビテーション, Gurabitēshon?) is a shōnen-ai manga series written by Maki Murakami. It has been adapted into an anime series, directed by Bob Shirohata.
The story follows the attempts of Shuichi Shindou and his band, Bad Luck, to become Japan's next musical sensation. Fitting for the subject, the anime features a large amount of music, a diverse set of characters, plenty of comedy and touches of drama and violence.
The manga originally ended in 2002 after 12 volumes, but new chapters are being serialized in an online manga anthology. The manga has been licensed and is published in English by TOKYOPOP. The Gravitation novel was released in English by TOKYOPOP on March 7, 2006.
A two episode OVA series was released in 1999. The thirteen-episode TV series aired in Japan from October 4, 2000 to January 10, 2001, on WOWOW satellite channel. The anime goes to roughly volume 7 of the manga. The Gravitation TV and OVA series have been licensed for North American release by Right Stuf International.
A manga sequel has been written under the title of Gravitation EX, published in English by TOKYOPOP.