Tom Petty & The Heartbreakers , Wilco, and Phil Lesh top a stacked bill at this year’s Lockn’ Festival, which returns to Arrington, Virginia after a successful inaugural year. The jam-heavy festival will take place at Oak Ridge Farm from September 4th through September 7th.

This year’s Lockn’ Fest finds the organizers changing things up a bit, with Wilco, Phil Lesh, Bob Weir & Ratdog, The String Cheese Incident, and Widespread Panic all performing for two days of the four-day festival. Widespread Panic’s second performance will be a special one, as it finds them performing in collaboration with Steve Winwood.

Other artists announced for the Lockn’ Festival include the Allman Brothers Band, Willie Nelson, The Wood Brothers, Drive-By Truckers, Umphrey’s McGee, Gary Clark, Jr., Preservation Hall Jazz Band, Willie Nelson, Grace Potter & The Nocturnals, and many more. Other acts are expected to be announced in the coming weeks.

For more information and to purchase tickets, visit the Lockn’ Festival website.