Farmer Derek Klingenberg, as he goes by on YouTube, demonstrated what happens when he sits and plays his trombone for his herd of cattle — this time in particular, a cover of Lorde’s “Royals.” Not to spoil it or anything, but it’s like when my dog hears the clink of her cookie jar, times like, a thousand. I don’t know if these are meat cows or milk cows, but seeing animals positively respond to music by wagging their tails and mooing makes me want to eat beef never ever again. If the cows were fans of say, Justin Bieber on the other hand, well — I might be craving a burger or two.