The X Factor judge posted this snap of herself on Twitter, wearing a racy tee featuring Miley Cyrus for Marc's 'Protect The Skin You're In' campaign.
The T-shirt is available to buy from Marc Jacobs stores and online, with proceeds going to the New York University Skin Cancer Institute in a bid to raise awareness and help fight skin cancer.
Miley recently unveiled her raunchy tee on Twitter, before adding photos of both herself and mum Tish modelling the top.
The 'We Can't Stop' singer joins a host of high-profile celebs who have previously stripped off for the campaign, including style queen Victoria Beckham and supermodel Cara Delevingne.
And Nicole isn't the only one showing support for Marc and Miley - Kelly Osbourne also recently stepped out rocking the black and white tee.
It's safe to say Miley looks totally a-mazing. And it's all for a great cause!
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