Rob Simonsen is an American composer and conductor. He is best known for his scores in films such as 500 Days of Summer, The Age of Adaline, Gifted, The Only Living Boy in New York, Tully, Love, Simon, The Front Runner, The Way Back, Ghostbusters: Afterlife, The Adam Project, The Whale, Deadpool& Wolverine, and It Ends with Us, and the television series Life in Pieces. He also collaborates with the directors Marc Webb, Jason Reitman and Shawn Levy.