R.E.M.? Forget them. Hootie and the Blowfish? Pop lightweights. Make room in your CD rack for Swamp Cats -- the most unlikely rock group to almost explode onto the Billboard charts. From the steamy Mississippi Delta to the lights and clubs of Beale Street in Memphis to the music stratosphere of MTV, Morris Godwin and David Chance front every musician's dream group in a hilarious romp through the deep South.