3. Katy Perry's Electric Blue Hair
This image appears in the gallery:
20 Of Katy Perry's Best Hairstyles That'll Make You Want To Call Your Hairdresser ASAP
3. 3. Katy Perry's Electric Blue Hair
Like her pop peers Nicki Minaj and Jessie J, Katy Perry is a big fan of brightly coloured wigs as seen here with this electric blue do.