Abba star reveals group's two new songs

Members of the group ABBA, Benny Andersson, right, and Bjorn Ulvaeus (Photo by Vianney Le Caer/Invision/AP) Abba star Bjorn Ulvaeus says two new songs - one a danceable pop tune and the other 'Nordic sad but happy at the same time' - from the Swedish foursome are on the way. Ulvaeus revealed...