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 countries as well as in Japan and Australia. The album became a major success, and along with the Spanish version of "Chiquitita", this signalled the group's breakthrough in Latin America. "ABBA Oro: Grandes Éxitos", the Spanish equivalent of "ABBA Gold: Greatest Hits", was released in 1999. In January 1981, Ulvaeus married Lena Källersjö, and manager Stig Anderson celebrated his 50th birthday with a party. For this occasion, ABBA recorded the track "Hovas Vittne" (a pun on the Swedish name for Jehovah's Witness and Anderson's birthplace, Hova) as a tribute to him, and released it only on 200 red vinyl copies,