4T4 was born with music on his mind, deejaying, producing, or simply active in music since the age of 14. In 1996 he released his first record. Major success came in '98, as DJ 4T4 with 't Hof Van Commerce. 4T4’s interest in dance music in general made him look out for a new projects. He took up and additional career as ‘party deejay’ and formed a new band: Ultrasonic aka Ultrasonic 7, a soulful dance project featuring vocalists Tom Derie (of Soapstone fame) and Nia Saw (of Zap Mama), and tech-wizard Uwe Teichert. In 2013 he celebrated 25 years of party-deejaying, a very successful career which he brought to an end in 2014.