Breathless promotion on the local radio station. Tickets selling out in a single day. Thousands of teenagers, hours before show time, lining up outside the biggest venue in town. The scene outside the Cleveland Arena on a chilly Friday night in March more than 50 years ago would look quite familiar to anyone who has ever attended a major rock concert. But no one on this particular night had ever even heard of a "rock concert." This, after all, was the night of an event now recognized as history's first major rock-and-roll show: the Moondog Coronation Ball, held in Cleveland on March 21, 1952.