There's less than one week left to enter the Raise Hell Sweepstakes for the chance to meet Hell on Wheels cast members and Zac Brown Band at the Southern Ground Music & Food Festival. Enter before 1PM ET | 12C on Mon., Aug. 27 and you could be the grand prize winner, who, along with one lucky guest, will travel to Nashville, TN (9/21-9/22) and Charleston, SC (10/20-10/21) for the festivities. Ready to raise hell?