Kelly Clarkson has been chosen to sing the national anthem on February 5 at the Superbowl. Her pre-game set will also include a duet of “America The Beautiful” by husband and wife country sensations Miranda Lambert and Blake Shelton. Kelly will kick off the big championship game and stars like Nicki Minaj, Madonna and Cee Lo Green will sing during the half time show. Rumor has it that Madonna will…