We've all heard of artists like Dalí and Picasso, who get so big they become celebrities, but who knew it could also happen the other way around? Behind the shine of their gilded lifestyles, some of our favorite singers and screen stars are secretly harboring dreams of starving artisthood and aren't afraid to get a little paint on their hands. Check out these 10 celebs whose work you would have never guessed would be in a gallery.