EAU CLAIRE, Wis. – The Blue Ox music festival opens June 23 with the Nashville folk buskers Old Crow Medicine Show. The three-day fest is at the Pines music park. On the program is Old Crow medicine Show’s signature “Wagon Wheel,” which received Recording Industry’s double platinum certification at 2 million copies. Three-day passes are $219. Among performers:

> Pert Near Sandstone, whose “Discovery of Honey,” debuted in 2016.

> Bela Fleck My Blue Grass Heart, which holds Grammys for melding country, jazz, pop classical and world music.

> Railroad Earth, whose repertoire includes its premiering “Elko” and “Warhead Boogie.”

Blue grass in Chippewa valley. Limited to 5,000 tickets.

“Wagon Wheel.” Performed by Old Crow Medicine Show.