Guy Playing Lorde’s “Royals” in a Field on a Trombone Brings the Cows Home [VIDEO]

Guitars and banjos aren't the only musical instruments fit for a field full of cattle. In a video posted by farming video YouTube star Farmer Derek Klingenberg, all it takes to bring the cows home is a lawn chair, a trombone, and Lorde's hit song 'Royals'.