Here's A Little Mash I Did A While Back, Figured I'd Put It Out For All You Demi Lovato/One Direction Fans... Enjoy...

Sources:
Demi Lovato - Heart Attack (Acapella)
One Direction - Rock Me (Instrumental)

[SOUNDCLOUD]https://soundcloud.com/dj_addict/addict-chris-saso-rock-attack[/SOUNDCLOUD]

I Have A Video Also, Let Me Know If You'd Like To See That As Well...