Matt Squire is a record producer, audio engineer, mixing engineer, and songwriter. His production, songwriting, and mixing credits include Underoath, Panic! at the Disco, Ariana Grande, Demi Lovato, Selena Gomez, Kesha, One Direction, Bea Miller, Krewella, Sum 41, Simple Plan, All Time Low, Good Charlotte, 3OH!3, Boys Like Girls, The Used, and Taking Back Sunday. He worked on season one and two of the American version of The X Factor.