Prima Vera had a number of hits, including such classics as Så lykkelig i Sverige ('So happy in Sweden', a version of The Turtles' So happy together) Det er Norge som er bra and De gærne har det godt.
He later stated that he changed his name because his idol, Norwegian singer Jahn Teigen, wrote his first name with an h.
Helmut Jahn | Jahn | Friedrich Ludwig Jahn | Otto Jahn | Jahn Teigen | Johann Jahn | Jahn–Teller effect |
After the tour, with the French band, he worked among others with musicians like Jahn Teigen, Alex and Olav Stedje.