Hubert Prior Vallée, known professionally as Rudy Vallée, was an American singer, saxophonist, bandleader, actor, and entertainer. He was the first male singer to rise from local radio broadcasts in New York City to national popularity as a "crooner".
Vallée c. late 1920s
Rudy Vallée, c. 1929
Vallée megaphone crafted in between shows at the New York Palace in May 1929
Rudy Vallée on The Fleischmann's Yeast Hour in 1933. He always signed on saying, "Heigh-ho, everybody!"
A crooner is a singer that performs with a smooth, intimate style that originated in the 1920s. The style was made possible by better microphones which picked up quieter sounds and a wider range of frequencies, allowing the singer to access a more dynamic range. This suggestion of intimacy was supposedly wildly attractive to women, especially younger ones such as teenage girls, known at the time as "bobby soxers". The crooning style developed out of singers who performed with big bands, and reached its height in the 1940s to late 1960s.
Frank Sinatra in 1947
Gene Austin
Perry Como, October 1946