SR: If you had the opportunity to perform with anyone, who would you choose?   

SM: The first one that you might not expect would be Tim McGraw. ... I think that would be a really interesting duet. And something people would definitely not expect: the pop American Idol guy and the country star. But obviously, people like Jason Mraz and John Mayer I think would be two people I would love to share the stage with at some point. And I have to throw Billy Joel in there, last, because that would just be amazing!