Holly started making trance music in 1993 and in 1998 he launched his first solo project Holy Men.
Following the success of his first album, he went on a world tour and played in Japan, Greece, Netherlands, Germany, France and of course Israel. In February 1999 he released C4, which had great success in Israel and in Greece where Holymen played many times in RLOAD parties as a special guest, and the rest of the Balkan. His "Seventh Heaven" album was followed by a big launch party in Athens and Amnesia Club. Three more albums followed with a more progressive oriented sound.