Dennis DeYoung is an American singer, songwriter, and musician best known as a founding member of the rock band Styx. Born on February 18, 1947, in Chicago, Illinois, he served as the band's lead vocalist and keyboardist. DeYoung was instrumental in creating many of Styx's biggest hits, including "Come Sail Away" and "Babe." In addition to his work with Styx, DeYoung has pursued a solo career, releasing several albums and singles. He is recognized for his theatrical style and powerful voice, which have made him a prominent figure in the rock music scene since the 1970s.