Taylor doesn't just rock the heroin-chic aesthetic, she lives it. The 19-year-old actress collects knives, watches porn, frequently forgets to wear pants, and strives to be like Kurt Cobain. (Yes, she actually said this.) With her band The Pretty Reckless, Taylor sings about abusing pills, needing therapy, and death. That's a lot of angst for the girl who played Cindy Lou Who in "How the Grinch Stole Christmas."