Maybe there's a connection between why Blake Shelton keeps winning "The Voice" and what he does to promote his winners. This season's winner of The Voice Cassadee Pope made a surprise appearance during one of Blake's concerts.

Shelton begins to sing Pope's song "Wasted All These Tears" live in Indianapolis Thursday July 27th then quits when he doesn't like the way it sounds. Only to reveal that Pope is backstage and has her sing her song for the crowd. Imagine what a boost it must be to an up and coming artists career to get to sing in a sold out arena. There's video of this. It's a little shaky and back a bit but the sound is good.