America Andy Gibb Ann Peebles Arlo Guthrie Barbra Streisand Bert Sommer Bette Midler Bill Chinnock Bill Haley Bill Withers Billy Joel Billy Preston Blues Project Blues Traveler Bo Diddley Bob Dylan Bob Neuwirth Brewer & Shipley Bruce Springsteen Buffy Sainte-Marie Bunky and Jake Burlap to Cashmere Carly Simon Carole King Chad Mitchell Charles & Eddie Chick Corea Chuck Berry Chuck Mangione Country Joe McDonald Curtis Mayfield Curtis Stigers Dan Avidan David Bromberg David Crosby Dean Friedman Dion Disappear Fear Don McLean Donny Hathaway Dory Previn Doug Kershaw Dr. John Ed McCurdy Eric Weissberg Elliott Murphy Etta James Frank Zappa & the Mothers of Invention Frankie Valli Fred Neil G. Love & Special Sauce Gavin DeGraw George Thorogood & the Destroyers Gil Scott-Heron Glen Burtnik Gordon Lightfoot Grayson Hugh Gunhill Road Hall & Oates Harry Chapin Helen Reddy Hugh Masekela Glen Hughes Ian & Sylvia Idina Menzel Isabela Moner Indigo Girls Ingrid Michaelson Jackson Browne Jae Jin Jake Holmes James Cotton James Taylor Janis Ian Janis Joplin Jann Klose Jean-Luc Ponty Jeffrey Gaines Jerry Jeff Walker Jesse Colin Young Jim Croce Jimi Hendrix Jimmy James and the Blue Flames Jimmy Webb Joan Armatrading Joan Baez Joe Ely Joe Walsh John Denver John Hartford John Prine John Sebastian Johnny Nash Joni Mitchell José Feliciano Josh White Judy Collins Kanye West Kenny Rankin Kenny Rogers and The First Edition Kenny Vance and The Planotones Kris Kristofferson Labelle Lacy J. Dalton Lady Gaga (as Stefani Germanotta Band, then on Dive Bar Tour) Lana Del Rey (Performed as "Lizzy Grant") Larry Coryell Laura Nyro Leo Kottke Leon Bibb Les Paul LiLi Roquelin Linda Ronstadt Lisa Kindred Lisa Loeb Little Feat Livingston Taylor Liza Minnelli Los Lonely Boys Lou Christie Luke Sabis Luther Allison Maria Muldaur Mark Duda Mark Ronson Marshall Brickman Marshall Chapman Marvin Gaye Mary Wells Maxene Andrews Melanie Melissa Manchester Merry Clayton Miles Davis Mimi Fariña Mitch Ryder & the Detroit Wheels Mongo Santamaria Morgana King Mose Allison Neil Diamond Neil Young New York Rock & Roll Ensemble Nil Lara Nina Simone Nitty Gritty Dirt Band Norah Jones Odetta Oscar Brand Otis Rush Patti Rothberg Patti Smith Paul Siebel[16] Paul Williams Peaches & Herb Pete Seeger Peter Stewart Peter Allen Peter Hammill Peter, Paul and Mary Phil Ochs Phil Trainer a/k/a Phil Steele Phoebe Snow Ramblin' Jack Elliott Randy Newman Richard Barone Richie Havens Ricky Nelson Robert Hunter Rod McKuen Ronee Blakely Rusted Root Ryan Cassata Sam & Dave Sarah McLachlan Shawn Colvin Shawn Mullins Simon & Garfunkel Skyhill Sonny Terry and Brownie McGhee Spin Doctors Stan Getz Stéphane Grappelli Stephen Bishop Steve Forbert Steve Goodman Stevie Wonder Stone Poneys Suzanne Vega Taj Mahal Taylor Swift The Big 3 The Box Tops The Brandos The Chambers Brothers The Charlie Daniels Band The Critters The Everly Brothers The Grateful Dead[17] The Happenings The Isley Brothers The Persuasions The Searchers The Serendipity Singers[13] The Shells The Staple Singers The Stone Poneys The Tarriers The Triplets The Womenfolk[18] Tim Hardin Tim Rose Tom Paxton Tom Rush Tommy James & the Shondells Tori Amos Tracy Chapman Van Morrison Vanessa Carlton Wendy Wall Yvonne Elliman