ABBA for the group. The track would set the stage for ABBA's foray into disco with their next album. On 9 January 1979, the group performed "Chiquitita" at the Music for UNICEF Concert held at the United Nations General Assembly to celebrate UNICEF's Year of the Child. ABBA donated the copyright of this worldwide hit to the UNICEF; see Music for UNICEF Concert. The single was released the following week, and reached number-one in ten countries. In mid-January 1979, Ulvaeus and Fältskog announced they were getting divorced. The news caused interest from the media and led to speculation about the band's
ABBA: The Tour five stamps commemorating music in Sweden. An image of ABBA, engraved by Czeslaw Slania from a photograph by Anders Hanser at the fourth concert of the tour (Portland Paramount Theatre), was immortalized on the Pop-music stamp in the Posten set. Other stamps showcased Swedish Classic, Opera, Folk and Jazz performers. ABBA: The Tour ABBA: The Tour, later also labelled ABBA in Concert and ABBA: North American and European Tour 1979, was the third and final concert tour by the Swedish pop group, ABBA. Primarily visiting North America, Europe and Asia during 1979–1980, the tour supported the group's sixth studio album,