Some people thought it would never happen again but ABBA performed together on stage for the first time since 1982. Björn Ulvaeus, Benny Andersson, Agnetha Fältskog and Anni-Frid Lyngstad got together at a private function to celebrate 50 years of friendship.

Benny and Bjorn originally met in 1966 and later teamed up with Agnetha and Frida. It was an intimate meeting and the group performed The Way Old Friends Do from the Super Trouper album.

ABBA won the 1974 Eurovision Song Contest with Waterloo and sold over 380 million albums around the world.

Source: www.eurovision.tv; people.com