Klubbheads

[1] Koen Groeneveld (DJ Boozy Woozy) and Addy van der Zwan (Itty Bitty) first worked together in the Turn Up the Bass series of commercial mixes.

They scored a Billboard Hot Dance Airplay hit in 2003 with "E" (which samples Eminem's "Without Me") under the Drunkenmunky name.

As Hi_Tack, they have released a remix of "Say Say Say" in 2006, a track originally by Paul McCartney and Michael Jackson (now renamed to "Say Say Say (Waiting 4 U)"), which reached #4 on the UK Singles Chart.

The track entered Billboard's Hot Dance Airplay chart in the United States, where it debuted at #18 for the week ending 6 March 2006.

Groeneveld and van der Zwan continue to work together under a new label, Unit 54, while Voermans remains with Digidance.