Released on September 23rd, 2013.
The track peaked at number 11 on the U.S. Billboard Hot 100.
An accompanying music video was filmed in Brooklyn on August 26, 2013, and premiered through Vevo on September 24, 2013.
Cyrus performed the song during the first and second legs of her Bangerz Tour.
"23" is a synth-driven hip hop song set to a mid-tempo beat and contains elements of bass and is distinguished in Cyrus' catalog as the first track in which she raps.