Country Jam is a four-day country music festival featuring 20+ bands on two stages, surrounded by Colorado's awe-inspiring red rock landscape. Artist Lineup: Parker McCollum Jelly Roll Thomas Rhett Flatland Cavalary Koe Wetzel Lee Brice The Bellamy Brothers Craig Morgan Priscilla Block Jackson Dean Sawyer Brown Jake Worthington Meg Mcree Dalton Dover Harper ONeill More Info below.