Epiphone's Zakk Wylde and Slash jammed on stage last weekend at Estadio Cubierto Malvinas Argentinas in Buenos Aires. Epiphone's Zakk Wylde and Slash jammed on stage last weekend at Estadio Cubierto Malvinas Argentinas in Buenos Aires. Black Label Society is opening some shows for Slash in South America. The crowd, as you might guess, thoroughly enjoyed the blues jam.

"Many thanks to Zakk for jamming w/us tonight. It was an honor and a privilege," tweeted Slash. Check it out below. Zakk is filming his unplugged Unblackened DVD in Los Angeles over the holidays. Look for it next spring.