Frank Sinatra meets the Doors in a way only Stevie Wonder can dream of. - AM New York

The Undisputed Heavyweights show really is a thing of its own. It's an Vaudevillian acoustic/rock/blues show, or something. Casey's stage persona is equal parts James Brown, Elvis Presley, and Bono. He struts, he preens, his gestures wildly. Heck, the guy wears sunglasses on stage and gets away with it. But then comes the surprise, etched in cursive on the head of a pin. Listen closely, and the songs are beautifully heartfelt, and wrenching. - Benjamin Wagner (MTVNews.com)