OK, guys, enough is enough — John Legend has clearly had it with the Arthur jokes. On Monday, the singer posted a photo of his adorable 2-year-old daughter, Luna, hanging out with her grandpa on Instagram. Cute, right? Well, if you look closely, the snap also featured a familiar aardvark doll, whom John referred to as "a stuffed animal whose name we shall not speak." Ouch! Chrissy Teigen has been trolling her husband with Arthur memes since last year, and something tells us she isn't stopping any time soon. Sorry, John!