Brandi Glanville just proved she has some KILLER abs.

The 42-year-old took to Instagram to share a nearly topless selfie in which she wears nothing but skin-tight black leggings and a tiny top (hello bobbies!)

"2 abs down 4 to go (remember I've had 2kids) and I'm old but I'm trying!" she cheekily captioned the photo.

The RHOBH star is hardly the first celeb who's dared to bare on social media. Click through the gallery above to see the many ways celebs have gone topless on Insta!