Video by Metal Injection
Peter Tägtgren (Gott!!!), Muhammed Suicmez, Marco Minnemann, Hannes Grossmann (all Necrophagist/ex Necrophagist), Abbath & Horgh (Immortal), Erik Rutan (Hate Eternal), Helmuth & Sigurd (Belphegor), Nergal & Inferno (Behemoth), Steve Vai, John Petrucci (to test if he..s as bigheaded, as many people say hehe), and last, but not least: Insanity!