Baby (Clean Bandit song)

"Baby" is a song by the English electronic music group Clean Bandit, featuring guest vocals from Welsh singer Marina and Puerto Rican singer Luis Fonsi. It was released on 2 November 2018 through Atlantic Records, as the fifth single from Clean Bandit's second studio album, What Is Love? (2018). The song was written by Diamandis, Matthew Knott, Fonsi, Jack Patterson, and Camille Purcell.

An accompanying music video was released the same day, where an unnamed bride (portrayed by Grace Chatto) marrying the groom (Fonsi), revealing flashbacks of having a thwarted relationship with a wedding guest (Starley), while attending summer camp. Clean Bandit later performed "Baby" on television programme Strictly Come Dancing: It Takes Two. It marked as Marina's first single where she is not credited under her previous stage name and later appeared on her fourth studio album, Love + Fear (2019). A version without Fonsi appears on the album's vinyl release.

Commercially, it topped the charts in Israel (Media Forest), the song debuted at number fifteen in the United Kingdom (Official Singles Chart), while it reached the top twenty in Bulgaria, Croatia, Iceland, Lebanon, and Scotland. "Baby" was later certified in Poland and the United Kingdom.