Depeche Mode, Floor Jansen, ReVamp, After Forever, Nightwish (mostly with Floor Jansen), Nachtmahr, Lacrimosa, Kamelot, Amaranthe, Xandria, Poisonblack, Epica, Marilyn Manson, Within Temptation, Metallica, Alice Cooper, OOMPH!, Deathstars, The 69 eyes, Delain, Xandria, Scorpions, Edguy, Masterplan, Emilie Autumn, Dream Theater, Mandragora Scream, Ozzy Osbourne, Tarot, Leaves' Eyes, Sarah Brightman, Tarja Turunen, Ayreon, Helloween, Avantasia, Edenbridge, To/Die/For, Amorphis, Jorn Lande, Threshold, Soulsavers and many others)