Fergie may just be too hot for social media! The new mom goes topless for the new Calvin Klein social media campaign and her body is no joke! In the video she posted to Instagram, Fergie rolls around in bed wearing nothing but Calvin Klein underwear and loose waves in her hair! Sexy! Did we mention she just gave birth six months ago? And the 38-year-old isn't the only celeb to join the campaign. Check out pics of Miranda Kerr and Trey Songz also stripping down here!