Igudesman & Joo in Ludwigsburg - why is Yuja Wang in the Video?

www.igudesmanandjoo.com/tour-dates/

December 15, 2018
Igudesman & Joo: A Little Silent Night Music
Forum am Schlosspark Ludwigsburg, Germany

forum.ludwigsburg.de/start/kultur/spielplan.html?nodeID=523128702816&zmdetail=1

Thank you Katharina Weigert for filming and editing!