Interesting little note, I have met the girl who cosplays Jessie in this photo (she is the infamous Jessie) and she said the wig was so heavy and awkward by the end of the day it was pretty much folded in half to take back home.
Sadly I kid but this is a unique cosplay I came across where this is actually a costume over a dog. I have seen several photos and the dog isnt fussed at all by costume (for those who may worry it was irritated or over-heated.)