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If you thought a Jessie J, Ariana Grande, and Nicki Minaj collaboration was huge ... wait until you hear what it sounds like when Taylor Swift is thrown into the mix too! 

Mashup pro Earlvin14 has combined "Bang Bang" with Taylor's "Shake It Off," creating one amazing mashup! 

In the YouTube description of the song, Earlvn writes:

"I did this mashup because I was addicted to both of the song's beat & drum stems, you can't deny that you won't dance to any of these songs."

Yup! We definitely can't deny it! 

Ariana, Nicki, and Taylor are all heading to Las Vegas this weekend for the iHeartRadio Music Festival. You can catch their performances by tuning in to a live stream of the show on Yahoo Live Friday and Saturday nights (September 19 & 20), starting at 10 p.m. ET/7 p.m. PT.

Check out "Bang Bang" vs. "Shake It Off" below! 

Photo: Getty Images