Miley Cyrus
6. Miley CyrusAfter Kat Von D gave Miley her newest tattoo in March, Kat took to Instagram to show off her work. The anatomical heart on Miley's forearm is a replica of a Leonardo da Vinci drawing, so she can, quite literally, wear her heart on her sleeve. Pretty bold for someone whose personal life is the subject of so many rumors. [Photo via]