"Rule/Sparkle" is a double A-side single by Japanese recording artist Ayumi Hamasaki from her tenth studio album, NEXT LEVEL' (2009). The song was released on a CD and DVD format on February 25, 2009 as the second single from the album. With "Rule" composed by Miki Wantanabe and "Sparkle" composed by Kazuhiro Hara, both songs were written by Hamasaki and produced by long-time collaborator Max Matsuura. "Rule" was used as the international theme song for the 2009 film Dragonball Evolution.