Sad!

"Sad!" (stylized in all-caps) is a song by American rapper and singer XXXTentacion from his second studio album, ? (2018). It was released as the lead single from the album on March 2, 2018. The track was written alongside producer John Cunningham. The song is XXXTentacion's highest charting in the United States, peaking at number one on the Billboard Hot 100 following his death on June 18, 2018. It has also amassed more than 2 billion streams on Spotify, being one of the most streamed songs on the platform. The song remains X's biggest and arguably most popular hit song to date. It discusses X's experiences with depression, thoughts of suicide, and romantic turmoil, as well as his personal regrets about his past.

A music video for "Sad!" was released on June 28, 2018, via his YouTube channel. On August 13, 2021, the single was certified Diamond by the RIAA in the US. The song has since come to be regarded as XXXTentacion's signature song.