D'r Sjaak has never appeared in the BSWC One-a-Day feed. Until today. He is from Limburg in the Netherlands.
His 2006 WM Recordings release, Schijnheiligen includes the following description:
D'r Sjaak is depressed, yet happy. Drunk, yet sober. Understated, yet danceable. Sleeping, yet awake.Likkubakkus is from his 2009 release: Speees KojBoj.
D'r Sjaak - Likkubakkus