Peter Kraus' film partner in the late 1950s, Conny Froboess, was not allowed to record with him for contractual reasons (other record company [l54908]). So the producers of Polydor were looking for a similar-sounding voice and replaced Conny Froboess with another singer. 16-year-old Johanna Svolanek was discovered at a casting in Vienna. She was quickly given the stage name Micky Main. A year later, the record companies agreed and Micky Main's short career was over.