Wild Bill's website too (www.wildbillsatlanta.com). I think last time the tryouts were held there for our area. My son is the guitar player there and the house band (35 cent Rodeo) had to play the backup music for the tryouts last year.
Best of luck to you. The last time I went to one of those competitions the talent was some kind of awsome - especially for the women. If a man can carry a tune in a bucket and look somewhat decent - he was a rare bird and had a real shot but a good many of the women were just amazing vocalist. You better be ready.