The 31-year-old superstar never has a hair out place, so it was only a matter of time before a major makeup brand signed her up for a cosmetics launch...
Katy Perry's scary night
Singer celebrates Halloween early and posts pictures on Twitter dressed as a skeleton
Katy Perry posted a photo of herself made up like a skeleton and an other with friends all in ghoulish fancy dress.
The star wrote: "Be honest with me, do I look tired?" and then "Scariest night of my life!".
Katie loves dressing up, so it's no surprise she's already celebrating Halloween.
The star kicks off her UK tour this weekend. She plays London's 02 Arena on Friday and Saturday.
California Gurl has been named as Billboard magazine's 'Woman Of The Year' for 2012.
Rihanna and Katy Perry are up for several awards at the 2012 music ceremony
The 'We Found Love' singer has recruited a team of a-list stars to help out each week on her Styled to Rock reality show.