Liberace, the world's greatest pianist, looked at Elvis Presley and said, "You're just a guitar player who shakes his hips. Real musicians play piano." Then he made a bet: one hundred dollars if Elvis could play just one song on his piano. What happened in the next five minutes made Liberace cry, made the room go silent, and proved that Elvis Presley wasn't just a rock and roll singer. He was something far more rare. November 1956, Las Vegas. Elvis Presley was performing at the New Frontier Hote