By DAILY MAIL REPORTER
Purr-ty: Katy Perry shows off her new ginger hair style as she launches her new fragrance in Toronto, Canada
Even though she looked flawless as she greeted fans at her perfume launch last night Katy Perry was well aware that she didn't appear quite right.
Because the singer was sporting a new accidental hair colour.
The 26-year-old songstress debuted a striking strawberry blonde hue to her hair, which for a long time has been dyed jet black, as she introduced her fragrance Purr at Sears in Toronto, Canada.
Lightening up: Katy is in the process of changing her hair to blonde from jet black
'On my way to launch PURR in TORONTO! FINALLY CA has PURR avail to them! she wrote on her Twitter page earlier in the day.
'P.s. If u see a ginger haired girl that looks like me, it's me! #yay.'
Katy, who is a natural blonde, has spent years maintaining her hair as a dark brunette, even dying her eyebrows and eyelashes to match.
Patience: The singer has to wait three weeks to lighten her locks further otherwise her hair could break off
If you see a ginger girl it's me! The singer told fans to look out for her
But in order to take her hair back to blonde the I Kissed A Girl singer had to complete the process in two stages.
So just over a week ago she had her hair dyed this dark red-blonde colour.
'So I didn't get to the exact color (sic) I wanted from being black for so long! she explained to her fans on Twitter.
Promo duties: Katy took part in a Q&A session with her Canadian fans
'2get to goal I have 2b GINGER for 3WKS,' before explaining: 'If I don't wait 3wks, I'll end up w/no hair or a #pixie90scutw/abarretteinthefront It's okay, I'll get to my secret color(s) soon! #patience'
Katy is currently in the middle of her California Dreams tour which sees her performing tonight in Toronto before heading to Montreal and Ottawa next week.
Meanwhile, back at home in Los Angeles, it was revealed that Katy and her husband Russell Brand have bought a $6.5 million Hollywood Hills mansion.
Natural: Pictures of Katy before she was famous reveal how she looked before her trademark black locks