Mile Twenty WHAT? Representing the 303 from a mile high, Mile 21 sets the pace for collegiate A Cappella. A family of friends just doing what they love together resulted in one pleasant byproduct -- Keeping college a cappella fresh and real. They use a total of 0 instruments except that which resides between the lungs and the lips. With a cult following, M21 draws big crowds to this diverse style. All in house arrangements and no shortage of raw talent ensures they light the stage on fire with vocal pyrotechnics at every show. Venturing to where none have gone before, Mile 21 has found new colors of the human voice. You might just hear something you never have before. There's nothing quite like Mile 21, not even another Mile 21-er. No two people on stage are the same. Different voices, different styles...One hot, new sound.