Brittany Marie Amaradio, known professionally as Delacey, is an American singer and songwriter. Having co-written songs such as "New York City" for The Chainsmokers, "Ruin the Friendship" for Demi Lovato, and "Without Me" for Halsey, in March 2020, she released her debut album, Black Coffee. She is currently working on her second album The Girl Has A Dream, featuring single "Boy With The Blues."