Helene Fischer performed an impromptu SOS with Björn Ulvaeus & Benny Andersson on the German entertainment show, ‘Wetten, dass..?’.
Björn and Benny were guests on the tv show to talk about the new album by ABBA, ‘Voyage’.
You can see the performance by Helene with the ABBA guys below.
Source: ESC Covers
Quite interesting
I would have liked if Helene added a word or two in German and or Russian in S O S to make it even more exotic.