I like the part when Kitty pounces on that douche of a guy she was with. I think there are some vague furry related concepts in there. All the different species behaving more human like is one of the simplest forms of anthropomorphism (we usually call it feral in the furry community) But there's also the subtle idea that Katy herself has the heart and soul of a wild animal (or the eye of the Tiger, as she says in the song) which is basically how most furries feel. Not saying that she's a furry in real life, but the character in the video is a sort of spiritual furry.