Umphrey’s McGee have been added to the bill for the second annual Lockn’ Festival, which is set to take place September 4-7 at the Oak Ridge Farm in Arrington, VA. The sextet join a lineup that already includes multiple performances by Phil Lesh and Friends, Bob Weir & RatDog, Widespread Panic (including a set with special guest Steve Winwood), The String Cheese Incident and Wilco, as well as single shows from The Allman Brothers Band, Willie Nelson, Acoustic Hot Tuna, Grace Potter and The Nocturnals, Gary Clark Jr and the Preservation Hall Jazz Band.

Tickets for the Lockn’ Festival are currently on sale, and more artists will be added to the lineup tomorrow.