ABBA Just Performed Together For The First Time In 30 Years

ABBA reunited to mark their 50th anniversary in Stockholm on Sunday night (last time we saw them together was earlier this year).

The Swedish pop group - comprised of Agnetha Faltskog, Bjorn Ulvaeus, Benny Andersson and Anni-Frid Lyngstad - made a rare appearance on stage, performing together for the first time since 1986.

The musicians were celebrating at a private party at the city's Berns Salonger hotel and opted for a low-key function to ring in the milestone.

According to local newspaper the Expressen, the Dancing Queen hitmakers were joined on stage by local celebrities and actors from the European country.

According to the publication, the quartet joined together to sing Me and I from their 1980 album Super Trouper.

While there is no video footage of the bash, two photos have circulated of the band embracing each other on stage.

The last time they were all together was for the opening of Stockholm's Mama Mia! The Party, which was held on January 20 but they didn't perform on that occasion.

The 70s group had previously been offered a mind-blowing $1 billion to reform for a reunion tour.

However, the turned it down because they weren't interested in going on the road again.

Frida, 70, admitted: "No amount of money would change our minds. Maybe we sometimes say it would be good to do a song together again, just a recording and nothing else, but I don't know if that will happen - so don't say that we will."

The group - which split in 1982 - also opted not to perform at their induction into the Rock and Roll Hall of Fame in 2010.