Furthur have added a date to their summer tour. On Saturday, July 13, the Grateful Dead offshoot will perform at Philadelphia, PA’s The Mann Center for the Performing Arts. The date falls in the middle of the band’s previously confirmed Northeast run.

The band performed in Atlantic City on Saturday night. Despite having to leave the stage early on Thursday night, Bob Weir was in fine form throughout Saturday’s show.

Here’s a look at Furthur’s summer dates

July 11 Brooklyn, NY—Barclays Center
July 12 Holmdel, NJ—PNC Bank Arts Center
July 13 Philadelphia, PA—The Mann Center
July 14 Cooperstown, NY—Doubleday Field
July 16 Gilford, NH—Meadow Brook
July 17-18 Boston, MA—Bank of America Pavilion
July 19 Canandaigua, NY—The Constellation Brands-Marvin Sands Performing Arts Center
July 20-21 Thornville, OH—All Good