In “Watermelon Sugar”, Harry Styles recalls a summer past, singing of scrumptious berries and a former love. The song was released without warning to fans, less than an hour before he performed the track during his hosting debut for Saturday Night Live. “Watermelon Sugar” is Harry’s second 2019 release, following October single “Lights Up,” with both tracks featuring on his sophomore album Fine Line. It was first teased by Harry in a tweet posted on October 22, 2019, also referencing his 2017 track “Kiwi,” commenting: Kiwi walked so Watermelon Sugar could run.