Sadly for Abba fans, however, Benny Andersson, Björn Ulvaeus, Anni-Frid Lyngstad, and Agnetha Faltskog weren’t in the mood to sing any of their signature hits at the Stockholm event. They also arrived and left separately and declined to be photographed together on the red carpet, though they stood beside one another on the stage. In 2014 Benny…