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This Justin Bieber/Ariana Grande Mash-Up Will Be Your Everything

Someone combined 'What Do You Mean' and 'One Last Time' into a gorgeous new song.

You may have never known that you needed this, but trust me, you need this.

Not only are Justin Bieber's "What Do You Mean?" and Ariana Grande's "One Last Time" infinitely amazing jams on their own, but the product of the two mashed together are even better.

YouTube user Jake Marra posted the mash-up this week, explaining that the two tracks blended well together and that it was a no-brainer to combine them. "Really enjoying the instrumental for Justin Bieber's latest single," Marra wrote. "So I thought I'd make a quick mashup! Songs are in the same key and same tempo, too easy!

With Ari's gorgeous vocals and the bouncy beat of Bieber's new track, which he performed live at the VMAs on Sunday, this whole new creation will be your everything.