Dawes, Dr. John, John Butler Trio, Trampled By Turtles and more have been added to the lineup for the 2013 XPoNential Music Festival, which takes place July 26-28 at Wiggins Park and the Susquehanna Bank Center in Camden, NJ. These artists join previously announced Saturday night performers The Lumineers, Dr. Dog, Polica and Wake Owl. Tickets to the festival go on sale May 1. Fans can reserve tickets by pledging $24 per month to WXPN radio. More artists will be added to the lineup in the coming weeks.

XPoNential Festival lineup

The Lumineers (Sat 7/27 at Sus. Bank Ctr.)
Dr. Dog (Sat 7/27 at Sus. Bank Ctr.)
Polica (Sat 7/27 at Sus. Bank Ctr.)
Wake Owl (Sat 7/27 at Sus. Bank Ctr.)
Dawes
John Butler Trio
Dr. John
Trampled By Turtles
Michael Kiwanuka
Brett Dennen
Lianne La Havas
Justin Townes Earle
José James
The Last Bison
Kopecky Family Band
Lord Huron
Phosphorescent
Fleeting Ends
DRGN KING
The Stray Birds
The Districts
Aaron & The Spell
Alo Brasil