Vandenberg was a Dutch hard rock band, named after guitarist Ad van den Berg (Adrian Vandenberg). In 1981 Ad van den Berg worked with vocalist Jos Veldhuizen, bassist Peter Van Eyk, and drummer Bico De Gooijer in a band called Teaser. He auditioned for Thin Lizzy, without success. With a new line-up (Bert Heerink (vocals), Ad Van Den Berg (guitar), Dick Kemper (bass), and Jos Zoomer on drums), Teaser recorded a demo that fell into the hands of pop-journalist Kees Baars.