Herbert Dreger was drummer in German thrashers Holy Moses. Dreger played drums on Holy Moses' debut album "Queen of Siam", but was forced to leave several weeks after the recordings had finished.
Dreger decided to attend a show of Whitesnake instead of playing with the band in Holland that same night as guests of Agent Steel. Herbert was followed up by 19 year old drumming talent Uli Kusch, who stayed with Holy Moses until 1990.