Kelly Clarkson is reportedly slated to sing the National Anthem at the big game on February 5 at the Lucas Oil Stadium in Indianapolis, Indiana. According to the Assosicated Press, Kelly's appearance has not been formally announced but it has been confirmed. Madonna will perform the halftime show with guests, M.I.A. and Nicki Minaj. Miranda Lambert and husband, Blake Shelton will reportedly sing a duet of "America the Beautiful."