Bruno Tonioli did!
The Dancing With The Stars judge shed his normal suited attire in an effort to encourage cancer research in the UK.
The Give Up Clothes For Good campaign is a nationwide scheme involving several big clothing and homeware stores using these ads to promote funding for childhood cancer research. Of the program, Bruno Tonioli said: "I encourage the nation to open up those closets; reach for those hidden marvels, and donate your fabulous items of clothing and homeware."
Among some of other Brit's in their birthday suits are Atomic Kitten Liz McLarnon, Celebrity Apprentice contestant Kate Walsh and England cricketer Jimmy Anderson.
It's certainly one way to garner attention for a cause!