Incredible creativity doing some real guerilla marketing. My only suggestion would be to add some additional text to her blog so that she can get some awesome SEO results for her blog. I would also change the title of the YouTube video. She is probably getting a TON of people looking for Call Me Maybe & Carley Rae Jepsen. A little tweak here and there and this could be even bigger and better than it already is.
Way to go Jessica!