Elisabeth Gunilla Andreassen (née Andreasson; born 28 March 1958), also known simply as Bettan, is a Norwegian-Swedish singer who has finished both first and second in the Eurovision Song Contest.

Her talent was discovered in 1979 by Swedish musician and TV host Lasse Holm.

She was produced by Bert Karlsson's label Mariann Grammofon AB.

Andreassen has sung in various genres such as country, pop, rock and in musicals.

Born on 28 March 1958 in Gothenburg, Sweden, to Norwegian parents.