Keizer began his career in music as a drummer with the band Empty Hearts, which he renamed the Q-tips two years later, after the main guitar player left, and turned it into a close-harmony band. By the late 1960s Keizer joined BZN to replace their drummer,
Jaap Sombroek. When the band's lead singer, Jan Veerman, left in 1974 Keizer replaced him. In 2007, he disbanded BZN. In 2008, he released another solo album
Give me your smile. In January 2010, he was on the jury for the
TROS singing competition
Sterren.nl Academy. Since then, Keizer has reunited with BZN's singer
Anny Schilder. == References ==