This year’s LOCKN’ Music Festival just got a lot more exciting. According to JamBase, Lockn’ has just announced that Preservation Hall Jazz Band, Hot Tuna (Acoustic), and Umphrey’s McGee will be added to the lineup in addition to the other major artists previously announced. The festival, which will be held at Oak Ridge Farm in Arlington, Virginia, will take place this September 4-7, 2014.

The already impressive lineup also includes Bob Weir & Rat Dog, Wilco, The Allman Brothers, Phil Lesh & Friends, and many other festival greats. You can see the full lineup on the Master Festival Spreadsheet, and the Lockn’ website indicates that more acts are yet to be announced.

Tickets for the Lockn’ Music Festival are now available for purchase through their website. 

-Marisa Frydman (@MusicalMarisa)