Doox of Yale (formerly '''The Duke's Men of Yale''') are an all-gender undergraduatea cappella group at Yale University. The group was founded by first-year students in 1952, and in 2017, was the first TTBB a cappella group in the 21st century at Yale to become all-gender. (The now-defunct group Augmented Seven did that right after Yale went coed in 1969.)
Provided by Wikipedia