H'wood hair chameleons

Some stars are hitting the (dye) bottle, others are chopping it off. Check out the range of looks for these celebrity hair chameleons ... Katy Perry is lightening up for the holidays. After months of hair-dye experimentation, the 'California Gurls' singer debuted a chic new bob. Perry traded the bright pink locks she's been sporting for a short, blond 'do with soft lavender highlights. Within the past year, Perry, a natural blond, has become a hair chameleon. In June, she began to make her drastic transformation by changing the jet-black hair she wore for most of her career to red, a color she said resulted from a botched dye job
.