"Sad!" by XXXTentacion is a melancholic hip-hop track typically performed in the key of G minor. Released in 2018 as part of his album "?" the song became one of XXXTentacion's most successful singles. XXXTentacion, an American rapper, singer, and songwriter, is both the interpreter and composer of the song. Notably, "Sad!" features emotionally charged lyrics reflecting XXXTentacion's struggles with mental health and personal demons. The melody is characterized by its moody piano riff, trap-influenced beats, and XXXTentacion's raw and introspective vocals, creating a haunting and introspective atmosphere that resonated deeply with listeners.