Biography NUMERO UNO
We were born and raised in Hilversum, the media town of the Netherlands. So it was a natural choice for us that we wanted to become pop singers. We are twin brothers, Hans and Rob Keller. We pursued this dream and we succeeded. For many years we were well known faces and voices on television and radio, at home and abroad.
With the groups CHIPS producer Hans van Hemert and NUMERO UNO (produced by Bolland & Bolland) and Keller Brothers with the song Margarita produced by Ton Scherpenzeel from the group KAYAK. we frequently went abroad, on tour.