Country Jam 2014 in Grand Junction, Colo. just got a whole lot bigger. Brantley Gilbert has just been announced as a performer for this four-day festival, one of the biggest and longest-running in the country.

In addition, Jerrod Niemann, Craig Morgan, Joe Nichols, Brett Eldredge, Thomas Rhett and four others have been added to a lineup that already included three A-list headliners.

Craig Campbell, Jana Kramer, Chase Rice and Blackjack Billy will also be taking over the stage nestled in the Colorado mountains. Country Jam has been a country music concert destination since 1992, with the hottest acts on the planet making the trek to get there. This year's festival is June 19-22, with headliners including Jake Owen, Eric Church and Lady Antebellum.

Tickets for Country Jam are on sale now. VIP, camping and Skybox packages are also still available. Visit the official Country Jam Colorado website to get all the details for this great country weekend, and to secure tickets for the festival. And don't worry, if you're not into camping, there are plenty of hotels located near the venue.