The great Steve Winwood will sit in with Widespread Panic during one of their sets at the second annual Lockn’ Festival. The multi-instrumentalist—best known for his work with Traffic, Spencer Davis Group and the supergroup Blind Faith—will play a number of songs with Panic, just as John Fogerty did for a portion of their set last year.

The 2014 Lockn’ Festival will take place September 4-7 at Oak Ridge Farm in Arrington, VA. The festival’s lineup already includes appearances by The Allman Brothers Band, Phil Lesh and Friends (two nights), Bob Weir and RatDog (two nights), The String Cheese Incident (two nights), Widespread Panic (two nights), Willie Nelson and Gary Clark Jr.

Winwood is the first sit in to be confirmed for this year’s Lockn’ Festival. Last year’s event featured previously scheduled collaborations like Fogerty with Widespread Panic, the Zac Brown Incident and Grace Potter with Gov’t Mule, while Phish guitarist Trey Anastasio surprised everyone by joining Furthur during their Saturday night show. Winwood’s first and only appearance with Widespread Panic took place at the inaugural Bonnaroo back in 2002.

Tickets for the Lockn’ Festival are now on sale.

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