Jonathan Percy Starker "JP" Saxe is a Canadian musician and singer. He is best known for his collaboration with American singer Julia Michaels titled "If the World Was Ending" which was released in 2019. The song was nominated for a 2021 Grammy. His "hero" grandfather, noted cellist János Starker, was a multiple nominee and Grammy winner.

Julia Carin Michaels is an American singer and songwriter. She has received five Grammy Award nominations, including twice for Song of the Year and Best New Artist, as well as nominations from MTV Video Music Awards, Billboard Music Awards, and American Music Awards.