Tens of thousands of music fans gathered at the Atlanta Motor Speedway for the Hard Rock Rockfest to celebrate modern rocks brightest stars. Fans packed the infield of the track for a 12 hours, 13 band concert that was accompanied by attractions such as a ferris wheel, volleyball games, arcade games, rock climbing, skateboarding, and all of the hemp jewelry you could ever need.

Gibson Musical Instruments was proud to cosponsor the event. Gibson and Mars cosponsored a booth in the Zone where fans could test drive the latest Gibson USA guitars as well as some Gibson's from Mars' vintage collection.

Check out the Rockfest gallery to see some of the action from the marathon concert.