However, even the most inspirational music legends have inspirations of their own. For the “Gloria” hitmaker, that inspiration came from Greek-American soprano opera star, Maria Callas.

Beginning with its instantly recognizable organ riff, the song combines classical opera with rock elements. The Phantom’s commanding vocals blend with Christine’s soaring soprano notes.

Susanna Phillips brings her SPA Trio to Tucson Desert Song Festival. TSO, meanwhile, is taking us to the moon and beyond with special "Symphonic Sci-Fi" concert.