We've heard of wearing your heart on your sleeve, but Katy Perry's gone one step further by wearing a custom heartfelt manicure to the Hollywood premiere of her 3D biopic Katy Perry: Part of Me. To celebrate the release of the access-all-areas look into her life, Katy sported a red glittery manicure with each nail finished with a different embellishment relating to the project. Our favourites are the 3D glasses and box of popcorn, but she also wore a musical note and film reel. It's not the first time we've seen some out-there nail art from Katy, but is it one of your favourite nail looks on her? Keen to watch Katy Perry: Part of Me? Win tickets now over at PopSugar!