"G.U.Y." (an acronym for "girl under you") is a song by American singer Lady Gaga from her third studio album, Artpop (2013). The song was written and produced by Gaga and Zedd. It debuted on Italian radio as the album's third single on March 28, 2014. It was developed while Gaga was touring with Born This Way Ball, and was recorded a number of times for the final version.