In 2008 he was a radio presenter on Radio Donna on Saturdays between 15h-20h. When radio Donna stopped he started on radio MNM with his show De Cock Late Night. During the summer he presented for a while during the morning on MNM.
De Cock, who is homosexual and married to his parter Maarten, has caused a commotion when he admitted to lying on his Red Cross medical questionnaire of whether he sleeps with other men. This, he finds, is a "foolish, homophobic rule."