Justin Tranter is an American singer and songwriter. Tranter has written hit songs for numerous top pop and rock artists including Ariana Grande, Lady Gaga, Justin Bieber, Selena Gomez, Demi Lovato, Dua Lipa, and Fall Out Boy, frequently collaborating with Julia Michaels. Tranter has also released the singles Forever, Brutal Honesty with Tricia Fukuhara and the cast of Grease: Rise of the Pink Ladies, and Blend In.