Duncan Sheik, Who Traded Pop Stardom for Broadway, Dies at 56.

Duncan Sheik, ‘Barely Breathing’ Hitmaker and ‘Spring Awakening’ Stage Composer, Dies at 56

Duncan Sheik, ‘Spring Awakening’ Composer and ‘Barely Breathing’ Singer, Dead at 56

Grammy-winning singer Duncan Sheik is in ‘critical but stable’ condition