"This is the only thing I ever wanted to do," says Brian Leighton. And 15 years, 3,000 shows and a dozen discs later he's still doing it - better than ever before. The leader and namesake of GB Leighton, who calls himself "a working class kid from a Twin Cities suburb who loves to put on a good show" is arguably the region's most popular rocker. His six-piece band performs some 200 shows a year across the upper midwest at such varied venues as nightclubs, county fairs and church festivals. Of...