"Dream Fighter" is the 8th major single recorded by Japanese girl group Perfume for their second studio album, Triangle (2009). It was written, composed, arranged and produced by the Japanese musician and Capsule member Yasutaka Nakata. The single included the B-side track, "Negai", of which a remix version appeared on the parent album. It was premiered on November 9, 2008, as the second single from the album in Japan. It was released on June 19, 2013, in European and Oceanic regions, and on June 25 in North America. Musically, "Dream Fighter" is an electropop song, influenced by dance music.