directed by Diane Martel and choreographed by Tone & Rich "3" is a song by American pop singer Britney Spears, from her upcoming second greatest hits compilation, The Singles Collection. It was released as the lead single of the album on September 29, 2009 by Jive Records. The song was produced by Max Martin and Shellback while Spears was on tour in Sweden. "3" is an uptempo dance song, that features a heavy bassline and has influences of electropop and rave. Lyrically, the track is ...