Jonathan Percy Starker Saxe (born March 23, 1993), known professionally as JP Saxe, is a Grammy nominated Canadian musician and singer-songwriter. He is best known for his collaboration with American singer Julia Michaels titled "If the World Was Ending" which was released on October 17, 2019. The song was nominated for a 2021 Grammy. His grandfather, noted cellist János Starker, was a multiple nominee and Grammy winner.