Why?  Because it's Hardly Strictly Bluegrass, which takes place October 5th through 7th in San Francisco's Golden Gate Park.  And, to boot, cette soiree is free.

 

Pitchfork has the rest of the lineup highlights: 

 

Jeff Tweedy, Bill Callahan, Charlie Louvin, Steve Earle, Nick Lowe, the Mekons, Jason Isbell and the 400 Unit, Emmylou Harris, John Prine, Sadies, Earl Scruggs, the Del McCoury Band, Hazel Dickens, Blanche, Heartless Bastards, the Knitters, Los Lobos, Doc Watson, Gillian Welch, and T Bone Burnett.