John Paul Jones, Coheed & Cambria, Roosevelt Collier and Audley Freed are among the latest additions to this year’s expanded Christmas Jam. As previously announced, Warren Haynes Presents: The 20th Anniversary of Christmas Jam will take place on Friday, December 12 and Saturday, December 13 at Asheville, NCs Asheville Civic Center. Some details regarding scheduling also have been released, with four confirmed artists slated to perform on December 12: Allman Brothers Band, The Del McCoury Band, The Derek Trucks Band and Ivan Neville’s Dumpstaphunk. December 13 will feature, among others, Gov’t Mule, Steve Earle, Michael Franti with Jay Bowman Acoustic and Johnny Winter. Other musicians who will participate over the course of the weekend include: Col. Bruce Hampton, Joan Osborne, Travis Tritt, JJ Grey and Eric Krasno with some additional artists yet to be announced. Ticket information and other specifics can be found at xmasjam.com.