"Fuck You", known as "Forget You" or "FU" for the clean versions, is a song by American recording artist CeeLo Green. It was written as a collaboration among Green, Bruno Mars, his production team the Smeezingtons, and Brody Brown. It was released on August 19, 2010, as the first single from Green's third solo studio album, The Lady Killer (2010). "Fuck You" received acclaim from music critics, and was an international commercial success, making the top-10 in thirteen countries, including topping charts in the United Kingdom, and number two on the Billboard Hot 100.

Thomas DeCarlo Callaway-Burton, known professionally as CeeLo Green, is an American singer, rapper, and record producer. He is known for his soul-infused delivery in hip hop and R&B, displayed in his signature song "Crazy" and his solo single "Fuck You."