The Hullabahoos are a group of guys at the University of Virginia who like to sing other people’s music without instruments. And wear robes while they do it. Since the group’s founding in 1987, they have been fortunate enough to sing at venues large and small, including the Hard Rock Cafe in Manila, Philippines, the George W. Bush 2007 President Dinner at the Washington Convention Center, on ABC Good Morning America, and for President Obama at the Democratic Caucus. In 2012, The Hullabahoos made their big screen debut, appearing on Pitch Perfect, and just a couple of months later, also appeared on America’s hit television show, The Office. With 28 years in the books, the group is just hitting its stride.