The Lockn’ Festival has revealed that Keller Williams’ Grateful Gospel will be returning in 2015. Last year’s edition of Grateful Gospel saw Williams team up with his funk band More Than A Little and Furthur guitarist John Kadlecik for songs from The Grateful Dead and Jerry Garcia repertoire, with a particular focus on the “spiritual gospel side.”

Williams’ Grateful Gospel joins a lineup already includes two nights of Widespread Panic, Tedeschi Trucks Band and The String Cheese Incident, including a special Doobie Incident set with SCI and The Doobie Brothers.

Tickets for the 2015 Lockn’ festival will go on sale this Monday, December 1.