Andy Frasco and the UN

The lineup also includes Margo Price, Hiss Golden Messenger, an 80th birthday celebration for the late Levon Helm, and more.

The 2019 Lockn' lineup also includes Oteil & Friends (with Bob Weir), Khruangbin, Old Crow Medicine Show, Preservation Hall Jazz Band, The Soul Rebels, Melvin Seals & JGB, and more.

Willie Nelson & Family, Gov’t Mule, The Avett Brothers, Michael Franti & Spearhead, Joe Russo’s Almost Dead and Marco Benevento are among the over 40 acts scheduled for Mountain Jam 2019.

The new Denver festival, which was created by Bonnaroo and Outside Lands co-creators Superfly, also features Sturgill Simpson, Miguel, The War On Drugs, De La Soul, Mavis Staples, and more.

The fest includes Sturgill Simpson, alt-J, The War On Drugs, The Decemberists, Jenny Lewis, Kurt Vile, Father John Misty, George Clinton, Portugal. The Man, Woods, and more.

Jam vets The String Cheese Incident are playing for the eighth year in a row, and Bassnectar — who headlined both weekends last year — is back too. The lineup also includes Cut Copy, !!!, Chromeo, Bonobo, Washed Out, Floating Points, Hiss Golden Messenger, Noname, Sinkane, and more.

Tom Petty & the Heartbreakers, Steve Miller Band, Sinkane, The Head & the Heart, White Denim, Gary Clark Jr, Peter Frampton, and more are playing this year's Mountain Jam.