"Buttons" is a song written by Sean Garrett, Jamal Jones, Jason Perry, and Nicole Scherzinger for the Pussycat Dolls' debut album PCD (2005). Released as the album's fourth single, the song became one of their biggest hits. It is their fourth top-three single on the UK Singles Chart and their second top-three single on the Billboard Hot 100. The Pussycat Dolls collaborated with Snoop Dogg on this release. The song was altered slightly from the album version, adding in two rap verses. For the final release of the single, the version featuring Snoop Dogg is described as the main mix.