Duncan Sheik, who traded pop stardom for a celebrated career on Broadway, has died at 56. The singer-songwriter grew weary of the heartthrob label following his 1996 smash hit “Barely Breathing” and pivoted to musical theater. He won two Tony Awards for composing the score to “Spring Awakening,” which opened on Broadway in 2006.

The rock musical, based on Frank Wedekind’s 1891 play, became a cultural phenomenon and cemented Sheik’s reputation as a serious theatrical composer. His later stage works included “American Psycho” and “The Secret Life of Bees.” Sheik’s journey from MTV staple to Broadway innovator traced an unusual arc in modern music, proving his artistry extended far beyond a single radio hit.