Founded at Indiana University and discovered on YouTube by Atlantic Records, Straight No Chaser has become one of the world’s top all-male a cappella groups, with a massive fanbase, numerous national TV appearances and a series of successful CD releases. When these nine unadulterated human voices come together, they make extraordinary music that moves people in a fundamental sense – and with a sense of humor. On its latest release, Six Pack: Volume 3, the group puts its stamp on rock classics as well as contemporary pop hits, including “Sweet Dreams/HandClap” (a mashup of the Eurythmics and Fitz and the Tantrums) and a show-stopping “Beyonce Medley.”