On October 17, 2008, Mattson joined the Top 10 finalists, as well as past winners from America's Got Talent to perform at the MGM Grand Garden Arena.[1]On October 24th, 2008, Mattson had a Meet and Greet in Surgeon Bay, Wisconsin at the Ladder House.On October 27th, 28th and 29th, 2008, he will be performing benefit concerts in his hometown of Door County, Wisconsin, and then taking the next step in his career