Dates in Canada and the United States, as well as an appearance on the Jimmy Kimmel Live show have been put on hold. "While all four of us are disappointed that we won't be able to see through all of our commitments set for the next few weeks, the most important thing is Tom's health. We thank the fans in Canada and here in L.A., the Megadeth camp, and everyone associated with Jimmy Kimmel Live! for their understanding. We look forward to seeing you all soon." Araya needs the surgery to correct a lingering back injury “thought to be related to his on-stage activity.” Full Article at Undercover