Conditions during the German occupation soon made it impossible to continue the cooperation with NRK, and the choir was for the remainder of the war years managed by the founder/conductor.
The choir has become an extremely popular institution in Norway with its many performances on radio and television, in addition to concerts all over the country.
In particular the program "Sølvguttene synger julen inn", which is broadcast every Christmas Eve, has been a major success.
The choir has often been engaged to perform at official events, such as the closing ceremony of the Lillehammer Olympic Games and the baptism of the Norwegian Princess Ingrid Alexandra.
Sølvguttene has been invited to and performed in some of the most spectacular churches and concerts halls in Europe, among them Westminster Abbey in London, St. Peter's Basilica in Rome and the Berliner Dom.
They have also performed with internationally recognized musicians such as Kiri Te Kanawa, Andrea Bocelli and Ole Edvard Antonsen.