Abba Perform On A Tv Show

LONDON, UNITED KINGDOM - DECEMBER 06: Benny Andersson, Bjorn Ulvaeus, Anni-Frid Lyngstad and Agnetha Faltskog of Swedish pop group Abba on the 'Mike Yarwood Christmas Show' filmed at BBC Television Centre in London, England on December 06, 1978 (Photo by David Redfern/Redferns)