Sweden’s King and Queen attend ABBA Voyage concert in London

Dancing Queen...and King! Real-life royalty King Carl XVI Gustaf and Queen Silvia of Sweden were in the audience on the opening night of “ABBA Voyage” at the ABBA Arena in London.

© Getty Images

The Swedish monarchs posed together for photos on the red carpet. The Queen, 78, opted for a colorful suit for the occasion. The four members of the Swedish pop group, Agnetha Faltskog, Björn Ulvaeus, Benny Andersson and Anni-Frid Lyngstad, were also in attendance on May 26, marking ABBA’s first public appearance since 2016, per  Billboard .

Back in 1976, the musicians performed their song “Dancing Queen” on the eve of King Carl Gustav and Queen Silvia’s royal wedding at a televised gala held at Stockholm’s Royal Swedish Opera. According to  Royal Central , the performance was a tribute to Silvia, but the song had not been specifically written for her.

© Getty Images

“ABBA Voyage”—which is described as “the greatest ABBA performance the world has never seen. Until now”—features digital versions of the group. “ Using motion capture technology, Agnetha, Björn, Benny and Anni-Frid spent weeks digitising their performances to create the avatars ” seen on stage.