Elton John and his partner celebrated a Civil Partnership in England this day.

During footage of the guests arriving (they mostly got caught in a traffic jam!), it is suspected that Björn was among the guests as it looks suspiciously like him in a white dinner jacket.  He was seen momentarily, 2 minutes and 24 seconds into the report.

It may not actually be him - but it DOES look like him.

Thanks to Sarah Marchant c/o ABBAMAIL (no longer online)