Well, Rihanna is officially cray cray! Last night, the hit singer popped up at an L.A. tattoo shop and got inked by popular tattooist, Mark Mahoney. LOL at the very least, the knuckle tattoo is in the glow in the dark ink, so it’s not THAT visible during the day. Still pretty insane, though. She also appears to have gotten another one on her lower back. Check out some more pics of her adventure below. What’s your thoughts on the new ink??