Jesse St. John Geller (born October 5, 1989) is an American songwriter and singer (also stylized as jesse saint john). St. John has written for a number of artists, most notably Britney Spears, Kim Petras, Dorian Electra, Charli XCX, Brooke Candy, and The Neighbourhood, among others. He released his debut EP, Don't Stop Dancing. Life Gets Sad, in May 2019. Saint John co-wrote the Billboard number-one single, "Truth Hurts", by Lizzo.