[youtube]http://www.youtube.com/watch?v=BUnvg2tj7cU&feature=player_embedded[/youtube]
Hatebreed kicked off the first date of the Rockstar Mayhem tour in San Bernardino, CA this weekend with a special appearance from Randy Blythe. The Lamb Of God frontman joined the band for a rendition of “Doomsayer.” While there’s no guarantee that Blythe will make a cameo during Hatebreed’s set throughout the tour, but you can check out a short clip of the performance above.