"Leave It Alone" is a song written by James Mercer and Brian Burton of the American alternative rock band Broken Bells.

A "Leave It Alone" promotional single was released for streaming on the Australian branch of commercial music streaming service Spotify on February 4, 2014, becoming the fourth release by the band in promotion of After the Disco, after singles "Holding on for Life", "After the Disco" and promotional single "Perfect World".

The song can be found in the soundtrack of the movie Miss You Already starring Toni Collette and Drew Barrymore.

The song is a playable track in the music video game Guitar Hero Live.

However, a lyric video, reflecting the art style of the After the Disco short film series and featuring the band's "signature pink aesthetic", was premiered on music video hosting service Vevo on February 4, 2014, the day of After the Disco's release in the United States.