Mumford & Sons put their own folk-rock twist on an Ariana Grande hit - and it sounds awesome!

While Mumford & Sons have plenty of their own songs to play, they decided to perform an epic folk-rock cover of Ariana Grande's hit song 'Breathin' when they dropped by the BBC Radio 1 Live Lounge.

Accompanied by Petr Aleksander and the London Contemporary Orchestra, the British band included the unexpected cover as it's one of the biggest pop songs of today.

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Prior to the performance, the quartet's frontman Marcus Mumford even called Grande "the greatest pop star since Whitney Houston."

They should really cross their music over more often!