Katamari Damacy (塊魂, lit. "Clump Spirit") is a third-person puzzle-action video game that was published and developed by Namco for the PlayStation 2 video game console. The success of the game led to the release of six sequels in Japan and other territories: We Love Katamari, Me & My Katamari, Beautiful Katamari, Katamari Damacy Mobile, I Love Katamari, and Katamari Forever. It also inspired a spin-off game, Korogashi Puzzle Katamari Damacy.
Five of the games' soundtracks have been released as albums. Katamari Fortissimo Damacy, a soundtrack album for the original game, was released by Columbia Music Entertainment in 2004, Katamari wa Damacy was released as a soundtrack album for We Love Katamari by Columbia Music Entertainment in 2005, and Katamari Original Soundtrack Damacy was released in 2006 as a soundtrack album for Me & My Katamari by the same publisher and also included tracks from We Love that were not included in its album. Katamari Suteki Damacy was released by Columbia Music Entertainment in 2007 as a soundtrack album for Beautiful Katamari, and the latest album, Katamari Damacy Tribute Original Soundtrack: Katamari Takeshi, was released in 2009 by Columbia Music Entertainment as the soundtrack album for Katamari Forever. The soundtracks to the other Katamari games have been composed of tracks from previous games in the series, and have not had separate album releases.
Both the soundtracks and their associated albums have been well received by reviewers, who have cited the "catchiness" and "quirkiness" of the music as their most notable features. The soundtrack to Katamari Damacy won both IGN's and GameSpot's "Soundtrack of the Year 2004" awards, while the theme song to We Love Katamari was awarded Best Original Vocal/Pop Song at the 4th Annual Game Audio Network Guild awards in 2006. None of the other soundtracks have been nominated for any awards. They were still well received by reviewers, with the music of the PlayStation Portable game Me & My Katamari receiving the weakest reviews due to its extensive reuse of songs from previous games in the series.