Friday-Saturday: The little country-and-camping festival that could has a big-time headliner in Alan Jackson, the quiet superstar with a jukebox full of classic country hits, on Saturday, which will be an all-male day with deep-voiced Josh Turner, high-energy Phil Vassar, rising star Jake Owen, veteran soulful piano man Ronnie Milsap and encouraging newcomer David Nail. Headlining on Friday is Dierks Bentley (pictured), a crowd-pleasing partier who just released "Up on the Ridge," a nicely rendered detour into bluegrass. In fact, he just completed a bluegrass tour backed by the McCourys. Now he's on the road with his own band, which will share a bill with strong-voiced Sara Evans, the delightfully humorous Trailer Choir, long-lived country-rockers Blackhawk and homeboys Rocket Club, fronted by KFAN Radio (1130 AM) personality Chris Hawkey. (3 p.m. Fri., noon Sat. $100-$250. Winsted Airport, Winsted, Minn. 1-888-946-7865 or www.winstockfestival.com.) JON BREAM