SOURCE: Euronews

https://www.euronews.com/2022/05/27/sweden-s-king-and-queen-attend-premier-of-new-abba-digital-concert-in-london

Four decades after the Swedish pop supergroup last performed live, audiences can once again see ABBA onstage in an innovative digital concert where past and future collide.

The show opens to the public in London on Friday, the day after a red-carpet premiere attended by superfans, celebrities and Sweden’s King Carl XVI Gustaf and Queen Silvia.

The four members of ABBA appeared in public together for the first time in years.