The Diva is the world's greatest soprano. She was a target of Valkyries while in New York City.
During a performance of the "Ride of the Valkyries" at the Metropolitan Opera House, the Diva was attacked by several Valkyries. Luckily, Peter Venkman and Egon Spengler happened to be in the audience. Venkman saved the Diva from injury. When the Ghostbusters returned to trap the entities, Diva demanded a bodyguard and chose Venkman. It was also an attempt to make the conductor, Leopold jealous. At first she was fascinated by Venkman's vulgarity but eventually threw him out of her dressing room.