But, despite stepping out in a stunning lava-inspired dress by French designer Stephane Rolland, she just blended into the red carpet.
The white top of Cheryl's sexy back-revealing number was a paparazzo's dream to capture on camera, but the crimson-feathered bottom disappeared.
Cosmetic giant L'Oreal, one of the festival's sponsors, flew Cheryl to France in a private jet but she won't be staying to munch croissants and soak up the sun.
Thunderstorms were forecast for the event and it's been a wet affair.
‘About to walk the red carpet for @LOrealParisUK. It's raining lol. !' Cheryl Tweeted before her big moment.
She's due to appear at the premiere of What To Expect When You're Expecting in London on tomorrow, so we wonder what she'll be wearing then...
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Karen Buglass
