Rascal Flatts are one of the best-known country acts of the 2000s and 2010s, thanks in part ot the foundation they laid with their self-titled debut album.
Jason Aldean once called Nashville "Hollywood with a touch of twang," and rocker Shawn Mullins deemed Los Angeles "kind of like Nashville with a tan," so it's only natural that the stars from each city would intermingle -- personally and professionally.