Question: What is the name of the American singer songwriter and television personality whose identity was used in an off-Broadway musical based on 'American Idol' where contestants dream of winning a spot as the opening act for this celebrities new tour?
Sentence (from "Idol: The Musical"): The story is about a group of "dork-like" characters who dream of winning a spot as the opening act in Clay Aiken's new tour.
Relevant evidence: Yes