3 Doors Down will be celebrating the 20th anniversary of “The Better Life” by performing it in full on a U.S. tour. Seether will open on most dates, while Candlebox, Theory Of A Deadman, Blackberry Smoke, Chayce Beckham, and Koe Wetzel will open on select dates. Tour Dates: 06/26 Greeley, CO – Island Grove Regional…