ABBA stars Björn Ulvaeus and Frida Lyngstad took over London’s Tate Modern, along with thousands of fans, to celebrate their 40 years of worldwide success. In 1974, ABBA won the Eurovision Song Contest for Sweden with their song "Waterloo." Since then, the band has sold more than 380 million records. Benny Andersson who composed most of the songs celebrated the anniversary at home in Stockholm.
Marking this event, Universal Music is filling the whole year with special releases -- a limited edition picture disc 7″ featuring both the English and Swedish versions of the single, a deluxe edition of "Waterloo" which includes a DVD, 8 bonus tracks, and a 20-page illustrated booklet. Bjorn and Frida were also launching the book “Abba – The Official Photobook." They quashed rumours of a reunion immediately, despite mentioning that they had met with the other band members quite recently.