"Harvest Sky" (stylised in all lowercase) is a song by French musician Oklou and American musician Underscores, from the former's debut studio album, Choke Enough (2025). It was released on October 16, 2024, through True Panther Sounds, as a double single with the song "Obvious". The song was written and produced by both artists, alongside Danny L Harle and Casey MQ; Nate Campany contributed additional writing, while Nick Léon contributed additional production. Remixes by Danny L Harle and Milkfish (an alias of Underscores) were released on December 18, 2024.