Duncan Sheik died Thursday at age 56. He died at a hospital in Manhattan.

Sheik was a singer-songwriter known for the 1996 hit "Barely Breathing." He also wrote music for the Broadway musical "Spring Awakening." The Guardian and Fox News reported the cause was organ failure. His mother Suzanne Sheik confirmed his death to The New York Times.

A post on his Instagram account also announced his death. The post said he died surrounded by loved ones.

Before his death his family said he was critical but stable. They asked for privacy while he received medical care.

After "Barely Breathing" succeeded Sheik moved into musical theater. He wrote the music for "Spring Awakening" with lyricist Steven Sater.

Sheik won two Tony Awards for composing the show. The musical won eight Tonys overall.