"Back in Time" is a song by the American rapper Pitbull. While originally released as the lead single from the soundtrack of sci-fi film Men in Black 3, it is not featured on the album. Instead, it was released as the lead single from Pitbull's seventh studio album, Global Warming. The single was released via download on March 27, 2012, before being issued physically in Germany on May 25.

"Dance Again" is a song recorded by American singer Jennifer Lopez for her first greatest hits album, Dance Again... the Hits (2012). It features guest vocals from American rapper Pitbull. The song was written by Enrique Iglesias, Bilal "The Chef" Hajji, AJ Junior, Pitbull and RedOne, who also produced the song. At the time of the song's production, Lopez was unsure whether or not the song would be the lead single from a greatest hits album, or a new studio album.