Katy Perry just blue her cover
The Firework singer swapped her usual bright dresses for a pair of plain grey jeans and a black-and-white top.
But despite her mostly-drab appearance, the star still gave the game away by failing to cover up her bright blue hair.
Katy, 27, was returning from the Asian leg of her California Dreams world tour.
The raunchy singer wowed crowds in Jakarta, Indonesia even plucking a local lad from the audience before landing a smacker on him.
But the lucky fan didn't seem shocked, even sneaking a smooch of his own on the showbiz beauty.
She kissed a boy - and he liked it ... Katy Perry lands a smacker on fan
SplashKaty has appeared upbeat recently despite her split from Brit comedian Russell Brand.
Before her Jakarta gig she tweeted: "It's the day of the show y'all! Can't WAIT!"
Hubby Russell filed for divorce just before New Year citing "irreconcilable differences".
The pair had wed just 14 months previously, in a three-day ceremony held in the Indian jungle.
It is thought Perry decided to take some time out of the limelight immediately following the break-up.
She opted not to attend the People's Choice Awards earlier this month despite landing a massive FIVE gongs.
She tweeted: "Unfortunately I will not be able to attend the People's Choice Awards. I want to thank u all for voting for me, fingers crossed!"