These "Sweethearts of the Armed Forces Radio Service" got their start as preteens, singing to help make extra money for their working-class Minneapolis family. But from 1938-50, Patty, Maxene, and LaVerne Andrews rose to national popularity with more than 100 swing, boogie-woogie, and novelty hits featuring their impeccably tight harmonies. Appearing in 17 films, their own radio show, and countless live performances for U.S. troops during World War II, The Andrews Sisters are one of the best-selling groups of all time.