William Fitzsimmons is an Illinois- (formerly Pennsylvania) based singer-songwriter. Fitzsimmons is perhaps best known for his songs "Passion Play" and "Please Don't Go," which aired during pivotal scenes in ABC's medical drama Grey's Anatomy and award-winning daytime drama General Hospital, respectively. His first two full-length albums, "Until When We Are Ghosts" (2005) and "Goodnight" (2006) were completely self-produced and recorded by William at his former home in Pittsburgh, PA.