Dan + Shay, Kane Brown and Toby Keith will be among the headliners at the 29th edition of Country Jam at the Jam Ranch outside Grand Junction, Colo. More than 15 top country artists will perform at the 6/18-21 festival.

Other performers include Dustin Lynch, Clay Walker, Craig Morgan, Jo Dee Messina and Blanco Brown. More than 100,000 people are expected at the event.

An additional headline artist and two other supporting acts will be announced for the four-day fest in early January.

Neste Live, part of Live Nation Entertainment, is among the producers of the event.

Neste Live President Gil Cunningham was the original talent buyer for Country Jam in its first years in Grand Junction, and he says “it’s amazing to see the growth of the marketplace and have the opportunity to promote the festival with Visit Grand Junction – one of the most progressive destination marketing organizations in the country.”

Tickets and campsites go on sale to the public on Thursday.