HI-TACK is a dutch club-house project created in 2005 by KOEN GROENEVELD (D.J./production, born in 1965) and ADDY VAN DER ZWAN (D.J./production, born in 1971).
In 1988, the both of us starts to mix. In 1992, they create the project 2 HI and THE ULTIMATE SEDUCTION. In 1995, they become KLUBBHEADS. Split in the spring 2005. KOEN is also known as D.J. BOOZY WOOZY. HI-TACK has a smash hit with "SAY SAY SAY (WAITING 4 U)" (#2 in Bulgaria, #3 in Finland, #4 in Great Britain, #8 in Ireland, #15 in the Netherlands, # 18 in Denmark, #21 in Belgium, #35 in France, #42 in Sweden, #50 in Australia, #59 in Switzerland and #65 in Austria).