While the Game of Thrones actor, Kristian Nairn, introduced Megadeth onstage at this year’s Hellfest Open Air, Arch Enemy guitarist Michael Amott surprised the crowd by joining the group during their classic song “Symphony of Destruction.” Prior to Amott’s appearance, Dave Mustaine dedicated the song, “My Last Words” to the late Vinnie Paul.

Watch the fan-filmed footage below: