Sophie Xeon (/ˈziːɒn/; 17 September 1986 – 30 January 2021), known mononymously as SOPHIE, was an English music producer, songwriter, and DJ. Her work is known for its brash take on pop music and is distinguished by experimental sound design, "sugary" synthesized textures, and incorporation of influences from underground dance styles. It would help pioneer the 2010s hyperpop microgenre.
Sophie rose to prominence with the breakthrough singles "Bipp" (2013) and "Lemonade" (2014), which were compiled on the singles collection Product (2015). She concealed her identity early in her solo career, but came out publicly as transgender in 2017. The following year, Sophie released the studio album Oil of Every Pearl's Un-Insides, earning a nomination for the Grammy Award for Best Dance/Electronic Album. She worked closely with artists from the PC Music label, including A. G. Cook and GFOTY, and also produced for acts such as Charli XCX, Vince Staples, Kim Petras, Madonna, Let's Eat Grandma, and Namie Amuro.