Dierenpark is a Hans Vandenburg (Gruppo Sportivo) project. "Slip Tong" is the first album by Dierenpark. It contains a sample of Zappa's 'Peaches En Regalia' in 'Hoe Je Psychiater Speld' by DJ Polderman.
(2002, cd, nl, my first step records step 3) - incl. zappa sample