Torontoist: "Famous YouTube Bridezilla Revealed." It's a performance. The hair is a wig. This is great work. "It looks cute! It looks like Shirley Temple or something!" "Can you put away the camera!" The surest sign of a hoax is that someone says to stop shooting.
What I liked best about the "Bride Has Massive Hair Wig Out" video was that it made you wonder if it was really real. Some of these YouTube sensations trade on that ambiguity, familiar from Reality TV and P.T. Barnum, between the authentic and the sham. The pleasure is in the wondering. And having the word "wig" in the title of the video, hiding in plain sight, just adds to the effect.