Katy Perry looks unrecognizable with black hair.

Katy Perry took to her Instagram account to show off her new look and looked unrecognizable, she told her fans ‘Mama has the night off so you get inches and @americanidol on @jimmykimmellive tonight ok’

Katy looked stunning with new shiny black hair for her appearance on the live show.

Beautiful, 36 year old Katy gave herself a mini transformation for her night off, leaving her baby Daisy Dove at home with fiancé Orlando Bloom.

The American Idol judge tagged her make-up artist Michael Anthony, stylist Tatiana Waterford and her hairstylist Jesus Guerrero in her Stories, before revealing that her ‘hair’ was fake.

American Idol season four premieres 14th February.

Image credit 📷 @KatyPerry