"Work" is the fifth single from British girl group The Saturdays. The pop song was written by Ina Wroldsen, Harry Sommerdahl and Kalle Engström and serves as the final single from the group's debut album Chasing Lights. It has been a fan favourite and paves the way for the group's first headline tour The Work Tour, which took its name from the song.

It was remixed by audio/music technician Phil Tan for its release on 29 June 2009 in the United Kingdom and Ireland through Fascination Records.

The music video was directed by Nez on May 16, 2009. It is described as a budget offering designed to give maximum impact to the song . The video features the new single remix of the song which has a heavier instrumentation and thicker baseline produced by music engineer Phil Tan.

At the start a little girl explores the outside of an abandonned warehouse to find that music is coming from inside. Within the warehouse the group dances and walks provocatively on a catwalk. Each group member is dressed in a black outfit, except Vanessa White, who is dressed in a pink catsuit. In the latter part of the video, they are accompanied by male dancers, who are also dressed in black outfits. The video premiered on MSN Video on 27 May 2009.