Been doing some thinking on who I've met.
Here's my list in no particular order, excluding most smaller Dutch bands:
Danko Jones: Danko, Dan, JC
Devildriver: Dez Fafara
Biohazard: Billy & Evan
Kitty (their first international tour and the singer was fucking arogant, old bassplayer was nice)
Static X: Wayne Static and the bassplayer
Fear Factory
Jurassic 5
Ozomatli
Herman Brood
Hans Dulfer (father of Candy Dulfer)
Deftones: Chi is really nice, the rest are ok.
Mike Patton
Suicidal Tendencies: Mike Muir (Rob was in the background, so missed out on meeting him)
Apocalyptica
Birgit (dutch popsinger with a fucking ugly heart tattooed on her wrist)
Machine Head (Rob twice)
Boo
Hermano
Quit Your Dayjob
Dilated Peoples
Cunninlinguists
Jonah (Far, Onelinedrawing and featured in Where'd you go by Fort Minor)
Incubus (way back in 1999)
Crazy Town
One Minute Silence
Kid Rock
Portishead (chainsmoking and heavy whiskey drinking woman, but what a voice)
Delinquent Habits
Kemo The Blaxican
Bouncing Souls: bassplayer & singer
Boysetsfire: singer
Dicemen
Ska-P
Brainpower
Leona (great Dutch singer http://www.leonamusiq.com)
Unjust: singer
Demia
Kcuf: singer
Ill Nino: drummer and gitarist
Amy Frank
Anti Product
Bumblefoot: (drummer is a good friend and singer does backup guitar in Guns 'n Roses nowadays)
Skindred: Benji (singer)
Papa Roach (when they were still good)
Mnemic (old singer)
Transport League
Osdorp Posse (dutch hiphop)
Misery Index
Stuck Mojo
Pennywise: Guitarist
Sepultura: Derek Green
Soulfly: Mike Doling (ex Soulfly nowadays and ex-Snot)
Gojira
Textures
Out of Project
Green Lizard
Watcha (french metal, they rock)
System of a Down
Spineshank
Hed PE (standing next to the rapper talking to him, a girl walked up to me and asked me, if I could ask him if she could get an autograph.)
Boris (he won Idols 2 years ago and he presented a prize friends of mine won at a gig contest.)
Relax
And I'm absolutely sure I've missed a whole bunch of names.
R.