Katy Perry’s New Blue Do, Keds to Match Your Hair Color, and One Dirty Photo Shoot

• Opening Ceremony is now selling Manic Panic hair dye, which really brings us full circle to our mall-rat days. The downtown boutique has even invited shoppers to submit photos of their best and worst home hair-dyeing attempts for the chance to win a vat of Manic Panic and matching neon Keds. [Opening Ceremony]

• Katy Perry sported electric-blue Bettie Page hair and graphic cat eyes at the MTV Movie Awards. [Fab Sugar]

• A memoir by Beverly Hills plastic surgeon Norman Leaf claims that Marilyn Monroe had a chin implant. The author allegedly has surgical records from his partner detailing the procedure. [Racked]

• Ipilimumab, a new drug being used to treat stages 3 and 4 melanoma, is expected to reduce skin-cancer deaths by 30 percent. [StyleList]

• Dirt-covered models are having a moment. Cole Mohr and Eva Herzigova sport some seriously smudgy makeup in this outdoorsy editorial for Italian Vogue. [Fashion Indie]

• Natalie Portman has been named the latest face of Parfums Christian Dior. [WWD]