Mamma Mia! Swedish Super-Troupers ABBA to Release New Songs

Swedish pop group Abba: Benny Andersson, Anni-Frid Lyngstad, Agnetha Faltskog and Bjorn Ulvaeus pose after winning the Swedish branch of the Eurovision Song Contest with their song "Waterloo", on Feb. 9, 1974. Olle Lindeborg/TT News Agency/via REUTERS

STOCKHOLM—Swedish pop icons ABBA will release their first new music for 35 years with two new songs set for broadcast in December, the quartet said on Friday.

ABBA is one of the most commercially successful music groups in history with more than 375 million albums and singles sold. They released nine studio albums between 1973 and their breakup in 1982.