The Roots, Michael Franti & Spearhead, Steel Pulse, Dirty Heads, Collie Buddz and Fishbone are among the acts that have been added to the lineup for next year’s California Roots Festival. The new artists join a bill that already includes Slightly Stoopid, Tribal Seeds, G. love & Special Sauce, Nahko and Medicine for the People, Trevor Hall, Giant Panda Guerilla Dub Squad, John Brown’s Body and more.

The three-day music and arts event will set up shop May 22-24 in Monterey, CA. Tickets will go on sale this Friday, November 7, and more acts will be added to the lineup next month.