Jonathan Wilson will once again partner with Tom Petty and The Heartbreakers’ Mike Campbell and a number of special guests for the second Merry Minstrel Musical Circus. All of the proceeds from the event—which is set to take place The Troubadour in Los Angeles on December 20—will benefit music programs in the L.A. Public School system and the Tazzy Animal Rescue Fund. Tickets to the show (which sold out in less than an hour last year) will go on sale tomorrow at 10am PST.

Last year’s Merry Minstrel Musical Circus featured appearances by Bob Weir, Jackson Browne, Benmont Tench and more.