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.