New York-born singer-songwriter
According to Wikipedia,
Emily Warren Schwartz is an American singer and songwriter signed to the label Prescription Songs. She is best known for the songs she has written for several high-profile pop artists, including Backstreet Boys, The Chainsmokers, Dua Lipa, Khalid, Sigrid, Melanie Martinez, and Shawn Mendes. She received a nomination for the Grammy Award for Song of the Year for co-writing Dua Lipa's "Don't Start Now".