I think the concert was in the open air somewhere at Izhevsk thats why she was wearing a coat although she's beautiful and the voice is perfect even if she was frozen
Obviously there are no seats on the ice! She has a great sense of humour too - self-deprecating and humble - "I look like Mickey Mouse". Notice that she refers to warmth and then of course, sings the up-tempo "Soleil" ( Sun) to warm everyone up!
When the filming is unclear you have to enjoy the cleareast voice xx She is amazing! It seems to be pretty cold here and the way she is performing, it is outstanding from the first notes.