Who knew that when you combined Taylor Swift's "I Knew You Were Trouble" with Demi Lovato's "Heart Attack," that you'd end up with this much awesome

I was in the car with my daughter earlier when T. Swift's "I Knew You Were Trouble," came on the radio. Elizabeth blurts out, "Have you heard the mashup of this with 'Heart Attack' from Demi Lovato? It's called 'I Knew You Were a Heart Attack,' and it's really good!" Of course, I was skeptical. I mean, I have taught this 13 year old girl to appreciate music of all genres and I do have faith in her musical taste, but T. Swift mashed with Demi? So here I am, YouTubing the mashup and well, to be honest, being blown away by awesomeness.