Congratulations to Gary Allan. He not only has the #1 song in the country right now with 'Every Storm (Runs Out Of Rain)', but he is a K-LAW Country Song Showdown champion. He beat out Little Big Town's 'Tornado' last week with 57% of the vote. This week, superstars take over the Showdown. It's Carrie Underwood with 'Two Black Cadillacs' taking on the latest from Rascal Flatts, 'Changed'. Watch the videos below then vote for your favorite. Voting will be open until midnight Monday, February 4th.