2016-02-20 Completely unexpected all four former ABBA members attend the opening of Björn's theme restaurant 'Mamma Mia! The Party' in Stockholm. The foursome appear together on stage.
2016-05-06 50 years ago Björn and Benny met each other for the first time and continued working together since that day. Agnetha and Frida joined them on stage at their 50th anniversary party in Stockholm.