WIKIPEDIA:

“ Olsen Brothers (Danish: Brødrene Olsen) are a Danish rock/pop music duo, and are brothers Jørgen (born 15 March 1950) and "Noller" (Niels, born 13 April 1954) Olsen. They formed their first band, The Kids, in 1965. The Kids warmed up for The Kinks in the K.B. Hallen in 1965 and released their first single in 1967.
Both Jørgen and Niels Olsen participated in the musical Hair in the Cirkusbygningen in Copenhagen March 1971, and went on tour afterwards through Denmark, Norway and Sweden.
The Olsen Brothers' first album came out in 1972. To date they have released 12 albums.
Their big hit singles include "Angelina" (1972), "Julie" (1977), "San Francisco" (1978), "Dans Dans Dans" (1979), "Marie, Marie" (1982) and "Neon Madonna" (1985).

Dansk Melodi Grand Prix / Eurovision
The Olsen Brothers and on occasions Jørgen Olsen on his own took part in a number of annual competitions known as Dansk Melodi Grand Prix the winner of which would represent Denmark in the Eurovision Song Contest.
- Dansk Melodi Grand Prix 2000 / Eurovision Song Contest 2000
They won the annual Dansk Melodi Grand Prix song competition in 2000 in Copenhagen and went on to represent Denmark in the Eurovision Song Contest 2000 in Stockholm, where they stormed [......] ”

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