The 6th Annual DelFest just announced their lineup for the four-day Memorial Day weekend music festival in Cumberland, Maryland. The event takes place on May 23-26, 2013. Besides the host headliner of the Del McCoury Band, this year features a surprise headliner with two sets of the Trey Anastasio Band. Other LMB favorites include Yonder Mountain String Band, Old Crow Medicine Show, Greensky Bluegrass, Trampled By Turtles, Joe Craven, and The Infamous Stringdusters. Tickets are on sale now. Check out the complete lineup after the jump.

Initial DelFest 2013 Lineup:

The Del McCoury Band
Trey Anastasio Band (2 Sets)
Old Crow Medicine Show
Yonder Mountain String Band
The Masters of Bluegrass: Del McCoury, Bobby Osborne, J.D. Crowe, Bobby Hicks, and Jerry McCoury
Trampled by Turtles
Carolina Chocolate Drops
The Travelin’ McCourys
The Infamous Stringdusters
Greensky Bluegrass
The Campbell Brothers
Sarah Jarosz
Pikelny, Sutton, McCoury, Bulla & Bales
Davisson Brothers Band
Larry Keel and Natural Bridge
Elephant Revival
Missy Raines and The New Hip
Reverend Peyton’s Big Damn Band
The Rambling Rooks
Hackensaw Boys
Joe Craven
Spirit Family Reunion
Blue Mafia

More Acts TBA…