The Colgate Thirteen, also known as The Colgate 13, is an undergraduate all-male a cappella group at Colgate University. The premiere a cappella group at the University, it is also the second-oldest collegiate a cappella group in the United States. Established in 1942, the group is named for the 13 men who founded the university in 1819, each offering $13 and 13 prayers. The Thirteen regularly perform at schools, alumni, community, corporate and sporting events. The group is known for performing the U.S. National Anthem at Super Bowl XIII in 1979.