And there will additional musicians added to a stellar, eclectic line-up of confirmed musical acts for the two-day festival, which so far includes: Tom Petty & the Heartbreakers, Phil Lesh & Friends, Beck, Elvis Costello & the Imposters featuring Allen Toussaint, Dr. John, Blues Traveler, Oysterhead, Bonnie Raitt, Radiohead, Death Cab for Cutie, moe., Bright Eyes, The Neville Brothers, Les Claypool, Bela Fleck & the Flecktones, My Morning Jacket, Ricky Skaggs & Kentucky Thunder, Shooter Jennings, Steve Earle, Nickel Creek, Buddy Guy, Sonic Youth, Damian "Jr. Gong" Marley, Ben Folds, Robert Randolph & the Family Band, Matisyahu, G. Love & Special Sauce, Cypress Hill, Blackalicious, The Streets, Lyrics Born, Common, Matt Costa, Steel Pulse, Mike Gordon and Ramble Dove, Cat Power, Medeski Martin & Wood, Gomez, Atmosphere, Amadou & Mariam, The Refugee All Stars, Stephen Malkmus & the Jicks, Umphrey's McGee, Disco Biscuits, Dresden Dolls, Son Volt, Clap Your Hands Say Yeah, Jerry Douglas, Soulive, Rusted Root, Devendra Banhart Band, Donovan Frankenreiter, Mike Doughty, Sasha, Grace Potter & the Nocturnals, The Magic Numbers, Bill Frisell, Seu Jorge, Bettye LaVette, Dungen,, Rebirth Brass Band, Robinella, Andrew Bird, Ivan Neville's Dumpstaphunk, Steel Train, Jackie Greene, Devotchka, The Wood Brothers, dios (malos), Toubab Krewe, The Motet, Marah, I-Nine, Balkan Beat Box, The Cat Empire, Tortured Soul, and Deadboy & the Elephantmen.