The Grammy winners have done this before. They did it before Game 4 of the 2013 World Series.
Rascal Flatts perform the national anthem before Game 4 of the World Series10/27/13: The Rascal Flatts perform the national anthem prior to the start of Game 4 of the World Series Check out MLB.com/video for more! About MLB.com: About MLB.com: Baseball Commissioner Allan H. (Bud) Selig announced on January 19, 2000, that the 30 Major League Club owners voted unanimously to centralize all of Baseball's Internet operations…2013-10-29T20:48:00Z
The Rascal Flatts, who formed in Ohio, performed the National Anthem for Game 3 of the NBA Finals. Click here to see the performance from the country stars.