I don't have the impression that the twins of this video are real ones. But I have to give to Pontello (who directed the video) that he's been very clever. In fact the differently coloured ribbons used to keep their wigs from moving (and uncover a probably different hair-colour and cut), serve (apparently) mainly the function to keep them apart: so reinforcing the impression of similitude. But I think that it is enough to watch the two side by side as they appear in the still frame at the beginning of the video to understand that they bear only a vague resemblance to each other. I also wonder why, in the credits, they are not listed as twins or together or with the same surname.
I think Pontello wanted to play clean, and laugh behind the credulous viewer's back.