Simon Wilcox is a Canadian singer songwriter based in Los Angeles and producer based in Los Angeles. She has helped write and produce songs for Poppy's album Poppy.Computer and Bubblebath EP. She is one of Poppy's friends.
She has written multiple platinum and gold singles, working with artists such as Nick Jonas, Enrique Iglesias, Tinashe, Demi Lovato, Five Seconds of Summer, Britney Spears, Fifth Harmony, Poppy, and DNCE, among others. Her songs have been used extensively in film and television.