Watermelon Sugar. Watermelon Sugar was the summer hit of the year 2020. It is a song by the British singer-songwriter Harry Styles, who felt inspired by the title of the American novel In Watermelon Sugar (1968) by Richard Brautigan. The melody of the chorus had already taken form during ?Live on Tour?, the debut tour that Styles embarked on in September 2017, finishing in July the following year. On a free day, Harry and his band went to The Cave Studio in Nashville, where they created the chorus melody. It is said that the song is about Styles? ex-girlfriend Camille Rowe. Seb Skelly arranged this catchy tune for saxophone quartet as a lasting memory of the extraordinary year 2020.