Via <a href="http://www.jambands.com/news/2013/04/22/the-allman-brothers-band-confirm-summer-dates-with-steve-winwood-and-grace-potter">Jambands</a>

The Allman Brothers Band have confirmed their heavily rumored summer tour. In addition to their upcoming co-headlining dates with Steve Winwood, The Allman Brothers Band will bring Grace Potter & the Nocturnals on the road as a support act for four shows (Winwood’s upcoming tour with Rod Stewart prevent him from playing certain markets). The Allman Brothers Band will also offer two “evening with” shows in Chicago on August 20 and 21

September 2 Alpharetta, GA—Verizon Wireless Amph at Encore Park (w/Grace Potter & The Nocturnals)
September 4 Virginia Beach, VA—Farm Bureau Live (w/Grace Potter & The Nocturnals)
September 6 Mansfield, MA—Comcast Ctr. (w/Grace Potter & The Nocturnals_
September 7 Wantagh, NY—Nikon at Jones Beach Theater (w/Grace Potter & The Nocturnals)