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 breaks chart record
She's the first woman to get 5 no.1's from the same album in the US.
Lat Friday night is the latest track from her Teenage Dream album to reach the summit of the Billboard Hot 100.
The only other artist to have five number ones from the same album was Michael Jackson with "Bad".
Katy tweeted: What a way to wake up! SO proud to announce that the little-engine-that-could of a song 'LAST FRIDAY NIGHT' is officially #1 & made HISTORY!...& u know, I couldn't have done it with out ya, really I owe u guys BIG... so take this moment to give yourself a high FIVE!!!
There's been other impressive stats in chart history, such as Mariah Carey was the first artist to have her first five singles top the Billboard.
Also, Westlife set a record in the UK as their first SEVEN singles topped the charts.
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.