Goodbyes are hard. Country trio Rascal Flatts—comprised of Gary LeVox, Jay DeMarcus and Joe Don Rooney—revealed they are extending their Rascal Flatts Farewell: Life Is a Highway Tour with 11 new dates. After announcing an initial run of 25 dates, including stops in Chicago, Dallas, Atlanta and more, Rascal Flatts will make 11 additional stops…