Kelly Clarkson has a pretty open schedule when it comes to performing for the rest of 2013, but it appears that Kelly Clarkson has scheduled at least one more concert.  It will be her very first live performance with an orchestra.   According to Northeastern University's alumni page, Kelly will take the state on May 2nd at Matthews area in Boston to sing with the Boston Pops Esplanade Orchestra.   The program includes the orchestra playing standards and Kelly performing several of her hits as a special guest.