Headhunterz, aka Willem Rebergen is a Dutch hardstyle DJ/producer. Formerly known as Nasty D-Tuners, his own label Scantraxx Reloaded, started in 2006 is a sublabel of Scantraxx.
At the age of nine, Rebergen sang in a children's choir that recorded several CDs. One year later, he started voice acting, which he still does today. He gained his first major experience as a DJ at Defqon.1 Festival, a huge hardstyle event in the Netherlands, where he was discovered by The Prophet.
Since then, Headhunterz has played at every major hardstyle event, including Defqon.1 Festival, Qlimax, Q-Base, In Qontrol, Decibel and many more. He played live at Qlimax in 2006, 2007 (which he produced the Anthem for), 2008, 2009 and 2011. He also produced the anthem for Defqon.1 Festival 2009, "Scrap Attack", and again for Defqon.1 Festival 2010 (Australia), "Save Your Scrap for Victory". He also produced the anthem for Defqon.1 Festival 2012 as a collaboration with Wildstylez and Noisecontrollers.
In 2008 he released an album together with Wildstylez, under the alias Project One. This album was very well received in the hardstyle scene, and in turn was followed up with a tour across the Netherlands.