"Holy pipes, Batman! Kelly Clarkson sang "Gravity". Woah. Gurrrl. Can. SANG. So cool!" That's Sara Bareilles' tweet on Kelly Clarkson covering her song while in Durham, NC Tuesday night for the Strong Tour 2012.

On each stop of her tour, Kelly has been covering songs from different artists. In the past she has covered Coldplay, Cee Lo Green, Heart and others. These artists are suggested to her by fans going to the show that night.

Don't forget to catch Kelly performing the national anthem right before the Super Bowl Sunday evening around 5:30p!