Listen: Awesome ‘Heart Attack’ & ‘IKYWT’ Mash Up!

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These two might have had their differences recently, but Taylor Swift and Demi Lovato‘s music sure does sound amazing put together! Recently, Taylor’s mega hit “I Knew You Were Trouble” was put together with Demi’s equally popular hit “Heart Attack” and the result is pretty fantastic.

While both songs are awesome on their own, putting them together gives us a whole new appreciation for the tunes! Take a listen to the track for yourself above, and tell us what you think of it in the comments section!

Test Your Pop Music Knowledge!