"Locked Away" is a song by Virgin Islands production duo Rock City featuring American singer Adam Levine, the lead singer of pop rock band Maroon 5. The song was released on June 29, 2015, by Kemosabe Records and RCA Records. The song peaked at number six on the Billboard Hot 100, making it the duo's first top ten hit and Levine's first single that he did not co-write.

Musically, "Locked Away" is a dancehall and reggae fusion song. According to the sheet music published at Musicnotes.com by Universal Music Publishing, the song is written in the key of D♭ major with a tempo of 94 beats per minute. The song follows a chord progression of D♭–B♭m–G♭–D♭–A♭, and the vocals span from B♭₃ to A♭₅. The song borrows its hook from Captain & Tennille's 1979 single "Do That to Me One More Time".