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I'm sure Lorde is grateful for her millions of adoring fans and all those shiny paperweights awards she's winning, but how does an artist really know they've got talent? Answer: if their song has the power to make the cows come home. 

Derek Klingenberg demonstrates just how catchy that "Royals" song really is when he plays his trombone and an entire herd of cattle emerges on the horizon for the free concert. Sadly, as soon as the camera cut off the cows followed the trombone music right onto a truck where they were hauled off to a slaughterhouse. Only kidding! (Not really though, that is what happens.)