Music of The Big O

This article lists the albums and singles attributed to the anime series The Big O.

The Big O: Original Sound Score
The Big O: Original Sound Score is the first soundtrack album of The Big O, released by Victor Entertainment on November 20, 1999. It contains the background music composed by Toshihiko Sahashi for the series' first season, plus the TV size versions of the opening and ending themes.

The Big O: Original Sound Score II for Second Season
The Big O: Original Sound Score II for Second Season is the second soundtrack album of The Big O, released by Victor Entertainment on January 22, 2003. It contains the background music composed by Toshihiko Sahashi for the series' second season, plus remixes of background music tracks from both seasons. The remixes are named after New York City streets.

The Big O
The Big O is the first single for the anime series of the same name, released by Victor Entertainment on October 21, 1999. It features the opening theme "Big-O!" by Rui Nagai and the ending theme "And Forever..." by Robbie Danzie with Naoki Takao.

"Respect"
"Respect" is the second single for the anime series The Big O, released by Victor Entertainment on January 3, 2003. It features the second season opening theme by Toshihiko Sahashi, plus the re-release of the original opening theme "Big-O!" by Rui Nagai and the ending theme "And Forever..." by Robbie Danzie with Naoki Takao.