Umphrey's McGee opened the official Jammys Post Party with its award-winning song "In the Kitchen." As is tradition, the Chicago-based sextet also invited a number of Jammys performers up Eighth Avenue to BB King's Blues Club for a late-night jam session, which stretched until 5AM. Reprising their Jammys collaborations, Huey Lewis added some harp and vocals to Umphrey's first set before yielding to the Disco Biscuits duo of Marc Brownstein and Aron Magner. Later, Jammy winner Joe Russo replaced Umphrey's drummer Kris Myers for a bit of group improv. After opening its second set with "Making Flippy Floppy," Umphrey's invited Nellie McKay onto the stage for an extended vocal scat which riffed on "Take Me Out to the Ballgame."Meanwhile, in Lucille's, saxophonist Jeff Coffin entertained fans with his own quartet.