Stars to Hold Tribute Concert for Gregg Allman The Allman Brothers, Sam Moore, Taj Mahal, Warren Haynes, Eric Church and several others have signed on to pay tribute in concert to Gregg Allman early next year. "All My Friends: Celebrating the Songs & Voice of Gregg Allman" will be held Jan. 10 at Atlanta's Fox Theatre. The concert will be filmed and released later. Others on the eclectic list of performers include Natalie Cole, Jackson Browne, John Hiatt, Pat Monahan of Train, Martina McBride, Trace Adkins and John Hiatt. Special guests and more performers will be announced soon. Tickets go on sale Nov. 1 at the Fox Theatre box office. Don Was will lead an all-star band lined up to help celebrate the Rock and Roll Hall of Fame member.