According to Pollstar, the Internet and magazine concert news site, but not officially announced by Alltel Arena, is a big show coming Aug. 24: Alan Jackson and Brooks and Dunn TOGETHER. Seems big to me, at least.
We'll see if this actually pans out. Alan Jackson is most likely coming this year at some point, as they had to postpone a planned visit last year when the tour schedule got rerouted. Paired with Brooks and Dunn, I'm not sure Alltel has enough seats available. According to Pollstar, Catherine Britt and Jake Owen will also be on the bill as the opening acts.