"Focus" is a song recorded by American singer Ariana Grande, released on October 30, 2015. Originally intended to be the lead single from her third studio album Dangerous Woman, the song was scrapped from the standard edition track listing, with the track only being included on the Japanese edition of the album. Later, "Dangerous Woman" replaced it as the lead single. The song was written by Savan Kotecha, Peter Svensson, Ilya and Grande.

The song debuted and peaked at number seven on the Billboard Hot 100, becoming Grande's sixth top-ten single and selling 113,000 downloads in its first week. As of March 2016, "Focus" has sold 425,000 copies in the United States and has been certified platinum by the RIAA. The single won Best Song To Dance To at the 2016 Radio Disney Music Awards.

Grande posted an unfocused picture of herself on Instagram in July 2015 with the caption "focus", stating it was a hint. Grande officially announced the single during her September 15, 2015 appearance on The Tonight Show Starring Jimmy Fallon and revealed that it would be released on October 30, 2015. Grande started revealing parts of the song's lyrics, video and audio previews of the song, as well as pixelated versions of the single's cover in early October through Instagram and Twitter. She revealed the official "Focus" single art cover on October 14, 2015. A week before its release date, a 15-second section of the track was used in a commercial for her debut fragrance, Ari by Ariana Grande.

The song was originally intended to be the lead single from Dangerous Woman, Grande's 2016 album, which she first titled Moonlight. On Jimmy Kimmel Live! in January 2016, however, Grande revealed that she might re-title the album after another song on the album. She announced the new title of the album on February 22, 2016. Grande released the single "Dangerous Woman", on March 11, 2016, along with the pre-order of the album, with a partial track listing that did not include "Focus". Grande's record label, Republic, later confirmed to Billboard that "Focus" had been removed from the standard edition of the album, with "Dangerous Woman" replacing it as the lead single. However, it is included as a bonus track on the Japanese edition of the album.

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