You've heard Lorde's hit "Royals" a thousand times on the radio ... but we're pretty sure you've never heard it like this.
"Royals" got the honky-tonk treatment Monday night at Winners Bar and Grill ... a divey country music sports bar in Nashville.
Country singer Craig Campbell -- the guy behind the 2010 country hit "Family Man" -- took the stage for the weekly "Whiskey Jam" ... strumming an acoustic version of the Grammy winning tune.
And it's actually pretty awesome.
Stetson's off to Craig.