When Garth Brooks sings, America still sings along

Maybe a dozen rows back, someone is flapping a poster board with a brave, hand-Sharpied declaration. "I [heart] Chris Gaines."Sorry, lady. On this Friday night in the 21st century, Garth Brooks can only be Garth Brooks -- which still means he gets to be plenty of people. The highest-selling recording artist who isn't a Beatle, for starters. But also a good-timing troubadour, a tireless showman, a shameless ham, a pro wrestler hyping his crowd, a televangelist with high blood pressure. When a tou...