Deke Sharon is an American music producer, arranger, and vocal coach, best known for his work in the a cappella genre. He has been a prominent figure in the a cappella community, contributing to various groups and projects, including the popular television show Pitch Perfect and the Sing-Off competition series. Sharon is also the founder of the Contemporary A Cappella Society and has authored several books on vocal techniques and arranging. His influence has helped to popularize a cappella music, making it more accessible to a wider audience and inspiring many aspiring vocalists and groups.