Although often regarded as a comedian, Sunde is a versatile guitarist who has played with several Dixieland bands and jazz combos over the years.
Sunde attended the obligatory military service in the Norwegian Air Force base at Kolsås after basic training at Gardermoen.
During his military training he wrote one of his hits "Fire melk og dagbla' for i går" on a boring night shift.
However, during a Norwegian class Sunde was bored and instead of paying attention he wrote one of his greatest hits, named "Jaktprat."
After a successful cooperation with Mikkel Aas in late 1970 after releasing the LP "1001 Fnatt", who sold over 25000 copies, Sunde decided to drop education and work full-time as an entertainer.
In 1976, Øystein Sunde moved back to Skarnes with his wife Gudrun, where he could pursue his hobbies, like model airplanes and garden golf.
Øystein Sunde became a part of the musician social environment in the capital, and he could often be found at the singer's club Dolphins with talented people like Kari Svendsen, Lillebjørn Nilsen, Ole Paus, Finn Kalvik and Hege Tunaal.
He has played in bands like Hitch-Hikers, Hi-Five, Christiania Fusel & Blaagress and Gitarkameratene (with fellow guitarists Lillebjørn Nilsen, Halvdan Sivertsen and Jan Eggum), and he has participated in matinées, but he gained most fame as a solo artist.