The All Good Music Festival has announced the performers who will participate in its Thursday Night All Good Pre-Party. Along with previously-confirmed quartet Perpetual Grove, the Thursday line-up also will feature Brazilian Girls and The JOIN. All Good’s incarnation of the JOIN will team The New Deal’s Darren Shearer and Jamie Shields with Marco Benevento and Joe Russo. The festival will take place from July 11-13 at Marvins Mountaintop in Masontown, WV with appearances from, among others: Widespread Panic, Phil Lesh & Friends, Govt Mule, Mike Gordon, Michael Franti & Spearhead, Medeski Scofield Martin & Wood, Keller Williams with the WMDs, Derek Trucks and Susan Tedeschi Soul Stew Revival, Railroad Earth, Tea Leaf Green, Dark Star Orchestra, The Avett Brothers, The Bridge, Bonerama and Pnuma Trio. Information regrading tickets for the event (and the pre-party) is available at the All Good website.