Singer-songwriter and Broadway composer Duncan Sheik dies at 56, with multiple outlets citing a post on his Instagram account and statements from family. He is best known for the 1996 pop hit “Barely Breathing” and for his later work on Broadway, including music composition for “Spring Awakening.”

Sources describe his death as following a period of sudden hospitalization earlier this week. The New York Post and Billboard report that his family said he was receiving medical care and was “critical but stable” due to an unspecified illness. Hollywood Reporter and other accounts, including Stuff.co.nz, say he died Thursday from organ failure, attributing the cause to medical information shared by his mother.

Outlets emphasize different aspects of his career: The New York Times highlights his move from pop stardom to musical theater and notes he won two Tony Awards for “Spring Awakening.” The Independent similarly frames him as a Tony-winning composer, adding that he was working on a new musical, “Memoirs of Amorous Gentlemen,” scheduled for Off-Broadway previews next week.