Right now there's only one lady in town that matters and she has a fetish for cupcakes, blue hair and sparkles. Katy Perry can seem to do no wrong - not only has she launched her own fragrance and range of OPI nail polishes, but now she's been signed up to be the face of every girl's must-have brand: GHD. Talk about a teenage dream. Katy has posed for these pictures to illustrate that GHDs aren't just for creating poker straight hair, but can also create very glam curls, waves and siren locks. Although these have been photoshopped within an inch of their life, the pictures are stunning and will no doubt have girls across the land running out to stock up on yet more hair straighteners.