Confirming widely speculated rumors, both Trey Anastasio and Page McConnell joined the Allman Brothers at their Thursday night show at the newly renovated Beacon Theater.

The Allman Brothers are celebrating their 40th anniversary during this run by inviting guests to join them on stage each night. Monday's show saw Levon Helm and Taj Mahal take the stage while Tuesday's show saw the band joined by both Johnny Winter and Los Lobos.

Midway through Thursday night's set, The Allmans welcomed blues legend Buddy Guy to the stage for a spirited take on the classic "The Sky is Cryin'." Buddy remained on the stage for a run through of "You Dont Love Me" and then the entire group was joined by Trey and Page for a take on "Southbound" to close the first set.

The band then returned to the stage for the second set with Trey and Page in tow for takes on "I Know You Rider" and "In Memory of Elizabeth Reed." Astute fans will remember that this is not the first time Trey has joined the Allmans for "Liz Reed" nor the first time Page has joined the band either.