Miranda Kerr and Fergie have taken to Instagram to share snaps of them posing in their knickers as part of a new campaign for Calvin Klein.
The pair are part of the new #MyCalvins campaign on Instagram. The brand signed up models, musicians and fashion bloggers to get involved and flash their underwear for the camera.
The Aussie model shared a picture and said she loves her new undies.
While Miranda Kerr teased followers with a tied up t-shirt and a quick flash of her knickers, singer Fergie went all out, quite literally, with a little video of her flaunting her post-pregnancy bod. She captioned the video: "Boom. #mycalvins."
Other celebs showing off their undies as part of the campaign include singers Trey Songz and Iggy Azalea and shoe designer Chiara Ferragni.
Model Lara Stone also got involved and shared this snap with the caption: "Nothing comes between me and #MyCalvins @calvinklein"
Of course the campaign has had a chain reaction and everyone is now posing in their Calvins and sharing the snaps.
More Miranda Kerr? Well, of course.