Jens Peter Book-Jenssen was a Norwegian singer of popular music, songwriter, revue artist and theatre director. From his stage debut in the early 1930s, his career included radio and television work, recordings, and extensive touring. His career spanned more than sixty years, and he was the top selling record artist in Norway in the 20th century.

Bærum is a municipality in the Greater Oslo Region in Akershus County, Norway. It forms an affluent suburb of Oslo on the west coast of the city. Bærum is Norway's fifth largest municipality with a population of 128,760 (2021). The administrative centre of the municipality is the town of Sandvika. Bærum was established as a municipality on 1 January 1838.