Rudy Vallée

One of the most popular entertainers of the '30s, Rudy Vallée was one of the few vocalists to begin crooning before the advent of Bing Crosby. Famed for singing through a megaphone and introducing his performances with a salutary "Heigh-Ho, Everybody," Vallée recorded into the mid-'40s and enjoyed a renaissance during the '60s after high-profile appearances on Broadway.