As American as apple pie, Gunnar & The Grizzly Boys make country music by nature, not by design. Their songs travel straight from the northern pines and fruit orchards of Michigan to your radio speakers and local honky-tonks. The energy of a live Grizzly Boys show explodes into the audience like an electrifying dose of adrenaline. This concert is part of the Lowell Showboat Sizzlin’ Summer Concert Series that runs June 15-August 25, presented by LowellArts and Lowell Area Chamber of Commerce. Thursday evening outdoor concerts begin at 7pm in front of the Flat River on the Riverwalk Plaza in downtown Lowell. Food and spirits are available, admission to the concerts and parking is free. The concert venue is wheelchair accessible. Bleacher seating is available or attendees can bring their own folding chair.