The trek – which is now in its fourth year and kicked off last month in Atlanta with Against Me!, Ghostland Observatory and others – touches down next at Coors Field in Denver on June 28.

The lineup for the show includes Gnarls Barkley, Blonde Redhead, Bassnectar, Dead Confederate and Eagle Seagull.

Other confirmed destinations include PETCO Park in San Diego (August 23 with The Black Keys, Kinky, Saul Williams and other acts TBA), Willow Island in Madison, Wis. (September 6 with The Roots, The Black Keys, , Benevento Russo Duo and Ha Ha Tonka) and the Saratoga Race Course in Saratoga Springs, N.Y. (September 13 with Justice, MGMT and other acts TBA).

The roster for the festival’s closing stop October 18 at Tempe Marketplace in Arizona will be announced in the coming weeks.

In addition to musical offerings, the 21-and-over SoCo Music Experience will feature food and beverages; poster, t-shirt and music vendors; photobooths and the SoCo & Lime Dome, featuring DJ Star Eyes on the wheels of steel, a virtual band experience and a computer tower.

Complete information about tickets and updates on lineups are available at