President Elect Donald Trump's inauguration festivities is taking shape and includes a whole roster of celebrities involved who are drawing major fan backlash. Carrie Underwood, confirmed earlier this week to sing "America the Beautiful" in a move that surprised some fans, will have plenty of company from the country music world for the big day. Billy Ray Cyrus, Jason Aldean, Rascal Flatts and more are booked to hit the stage, either at one of three official inaugural balls or the Make America Great Again Victory Rally.