Watch the Goat Remix of Demi Lovato’s Heart Attack [VIDEO]

You've seen the goat remix of Taylor Swift's 'Trouble', now it's Demi's turn to shine.

In case you forgot, a 'goat remix' is taking popular songs, and replacing the 'oh's' and 'ah's' by a screaming goat.

OK, Demi, we won't leave you hanging.  Let's save some room for Katy Perry....