text: The 2015 event, the first since the retirement of the Allman Brothers Band, was scheduled for April 16–18 and featured Widespread Panic, Gregg Allman, Gov't Mule, Earth, Wind & Fire, JJ Grey & Mofro, Cheap Trick, Jaimoe's Jasssz Band, Butch Trucks and Zappa Plays Zappa, Galactic, Hot Tuna Electric, Yonder Mountain String Band, Leftover Salmon, Dumpstaphunk, The Word, Raw Oyster Cult, Dragon Smoke, The Revivalists, Home at Last, Pink Talking Fish, Royal Southern Brotherhood, Juke and many other artists