? is the second studio album by American rapper XXXTentacion and the last to be released during his lifetime. It was released on March 16, 2018, by Bad Vibes Forever, Caroline Distribution, and Capitol Music Group.It succeeds the release of his debut studio album 17 and the extended play A Ghetto Christmas Carol (both 2017). The album was primarily produced by frequent collaborator John Cunningham, and includes guest appearances from PnB Rock, Travis Barker, and Joey Badass, among others. ? debuted at number one on the US Billboard 200 with 131,000 album-equivalent units.On August 7, 2018, the album was certified Platinum by the RIAA. It was supported by three singles: "Sad!", "Changes" and "Moonlight". Following XXXTentacion's death on June 18, 2018,"Sad!" became a number one hit on several charts, including the Billboard Hot 100.