Hi_Tack is an electronic group hailing from The Netherlands consisting of two Dutch producers named Koen Groeneveld and Addy van der Zwaan, formed in 1996 as Klubbheads. They also used a lot of other aliases such as Code Blue or Greenfield. Their most successful single to date is a remix of Paul McCartney and Michael Jackson's song, Say Say Say. They remixed it and released it in 2006 entitling it Say Say Say (Waiting 4 U).

Read more about Hi_Tack on Last.fm.