The Hardly Strictly Bluegrass Festival – scheduled for Oct. 4-6 in San Francisco’s Golden Gate Park – has added its third wave of performers, including legendary frontman Robert Plant, country icon Emmylou Harris, indie regular Kurt Vile and more.

The new additions will perform alongside previously-announced acts like The Milk Carton Kids, Calexico and Iron & Wine, Dakhabrakha, Hayes Carll, Jackie Greene, Meat Puppets, Bettye LaVette, Margo Price, Steve Earle, Hot Buttered Rum and more.

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