Download the official backing track of Zakk Wylde’s latest single, “Sleeping Dogs” and upload your best performance for the opportunity to win a private master class with Zakk Wylde in Los Angeles, new gear from Wylde Audio, Monster Cable, Dunlop/MXR, and EMG, a feature with Revolver Magazine, and more. Download the official track at guitarcenter.com/masterclass and submit your performance today! Grab Zakk’s new album “Book of Shadows II” available April 8 at Guitar Center.