Mark Sonnenblick is an American songwriter and composer, with credits in musical theater, film, and television. He is one of the lyricists for the musical The Devil Wears Prada, and has written songs for the films Lyle, Lyle, Crocodile (2022), Spirited (2022), and Theater Camp (2023).[1] Sonnenblick co-wrote many of the songs for the animated film KPop Demon Hunters (2025), including "Golden", which topped the Billboard Hot 100 and earned him two nominations at the 68th Annual Grammy Awards, including for Song of the Year, and an Oscar. Sonnenblick grew up in Greater Los Angeles and started playing the piano and eventually songwriting as a child. He was introduced to musical theater by his high school music teacher Mr. Babcock at Chadwick School, where Sonnenblick graduated as Class of 2008. In 2012, he graduated with a Bachelor of Arts in American studies from Yale College. He moved to Denver after college, and then to New York City in 2014, where he started writing musicals. He was the recipient of a Jonathan Larson Grant in 2018, presented by the American Theatre Wing. He is openly gay, and was honored by Out as one of the Out100 in 2025.