Pic of the 70's-Where and when was this?

[mjchris]

It was in 1979 in Switzerland. Maybe on Destiny-Tour. January 22, 1979 – September 26, 1979 (so that means between January and April 1979) When the jacksons did the "snow performance"of "Blame it on the boogie".

http://www.youtube.com/watch?v=ZUTG_FG1A0Y

but where and when was this exactly?