Hi-Tack is a Dutch DJ and producer duo, composed of Peter Gelderblom and Michel de Hey. Their first single, "Say Say Say (Waiting 4 U)", was released in 2005 and reached the 2nd place in the Dutch charts. In 2006, their single "Silence" reached the 1st place in the Dutch charts and was certified gold. In 2007, their single "Let's Dance" reached the 4th place in the Dutch charts.