Last night (July 16), Korn played their first show with bassist Roberto “Ra” Díaz (Suicidal Tendencies) at the Upheaval festival in Grand Rapids, MI. You can check out fan-filmed footage of that below. As previously reported, Diaz is currently filling in for Reginald “Fieldy” Arvizu, who he is taking a hiatus from the band to focus on “personal issues that at times have caused [him] to fall back on some of [his] bad habits.”