The complete lineup is out for Hardly Strictly Bluegrass Festival, October 4-6 in Golden Gate Park, with local roots rocker Chris Isaak, Los Lobos celebrating their 40 year anniversary and gypsy punk artist Gogol Bordello among the headliners.

Event organizers initially shared the first 41 confirmed acts for this year’s through a weekly series of music medley’s on SoundCloud. Other acts confirmed for this year’s free weekend concert in the park include a mix of classic HSB acts, like blues and R&B singer Bonnie Rait, singer-songwriter Boz Scaggs, jam band The String Cheese Incident and newer acts such as Father John Misty, The Devil Makes Three,and G. Love & Special Sauce. On Friday morning, MC Hammer is hosting a middle school program.

Attendees are allowed to bring their own picnics and drinks to the free festival. There will be more than 50 local Bay Area food and drink vendors on site. A daily schedule will be announced a few days before the festival begins and a mobile app will also be available,  according to organizers.

The Complete 2013 Lineup:

MC Hammer (Friday morning middle school program)
Boz Scaggs
Ryan Bingham
Sonny & The Sunsets
Della Mae
Alison Brown
Evolfo Doofeht
The Deep Dark Woods
Martha Wainwright
Conor Brings Friends For Friday Featuring: Whispertown
The Cave Singers
The Felice Brothers
The Evens
First Aid Kit
Conor Oberst
Peter Rowan Bluegrass Band featuring Yungchen Lhamo
The Go To Hell Man Clan
Spirit Family Reunion
The Forest Rangers with Katey Sagal
Robert Earl Keen
Sturgill Simpson
Justin Townes Earle
Kat Edmonson
Bonnie Raitt
Manchester Orchestra
Dave Alvin with Greg Leisz
Kate McGarrigle Tribute with Martha & Sloan Wainwright & Special Guests
Poor Man’s Whiskey (Friday morning middle school program)
The Time Jumpers featuring Brad Albin
Larry Franklin
Paul Franklin
Vince Gill
“Ranger Doug” Green
Andy Reiss
Dawn Sears
Kenny Sears
Joe Spivey
Jeff Taylor & Billy Thomas
Ralph Stanley & The Clinch Mountain Boys
Tim O’Brien & Darrell Scott
Laurie Lewis & The Right Hands
Mike Scott & Steve Wickham of The Waterboys
Mark Lanegan
Sallie Ford & The Sound Outside
Los Lobos Disconnected
Jesse DeNatale
Richard Thompson
Kieran Kane
Kevin Welch & Fats Kaplin
Steve Earle & The Dukes
Emmylou Harris
Paul Kelly
The Wood Brothers
Robert Ellis
The Brothers Comatose
Trampled By Turtles
Buddy Miller & Jim Lauderdale
Pieta Brown
Billy Bragg
Mike Farris & The Roseland Rhythm Revue
Holler Down the Hollow: A Hardly Strictly Salute to the Masters
Nicki Bluhm & The Gramblers
The Devil Makes Three
Jerry Douglas
Seldom Scene
Gogol Bordello
Father John Misty
Joy Kills Sorrow
The Handsome Family
Buddy Miller
Jon Langford & Skull Orchard acoustic / Freakons
The String Cheese Incident
Natalie Maines
The Warren Hood Band
Nick Lowe
G. Love & Special Sauce
Elvin Bishop
The Flatlanders featuring Joe Ely
Jimmie Dale Gilmore & Butch Hancock
Bettye LaVette
Chris Isaak
Tim O’Brien with Bryan Sutton &amp
Mike Bub
Loudon Wainwright III
Jesse Dee
Patty Griffin
Steve Martin and Steep Canyon Rangers featuring Edie Brickell
Tift Merritt
Dry Branch Fire Squad
Shovels & Rope
Tumbleweed Wanderers

[PHOTO: Jon Langford and the Sadies at Hardly Strictly Bluegrass 2012]