Who should Taylor Swift bring onstage at Scottrade Center shows?

STLtoday.comWho should Taylor Swift bring onstage at Scottrade Center shows?STLtoday.comThe big question going into Taylor Swift's two sold-out concerts Monday and Tuesday nights at Scottrade Center isn't what songs she'll sing or what she'll wear, but what special guests will she deliver. It's a question I've actually been asked several ...and more »