Jessica Simpson has fans worried after she posted her latest Instagram picture in which she looks scary skinny and appears to be sporting a large bruise on her arm.

Taken at a restaurant, the singer-turned-designer was wearing a sexy black ensemble that showed off her protruding collarbone. But, whether it was down to her dark purple eye shadow or her weight loss, the star's face looked very gaunt and her arms stick thin.

RELATED: Jessica Simpson Shares Her Most Bizarre Instagram Photo

jessica simpson scary skinny instagram

(Photo credit: Instagram)

The troublesome photo was captioned, “Come On Baby, Light My Fire…”

RELATED: Jessica Simpson And Hubby Eric Johnson Post Steamy Pics Inspired By '50 Shades of Grey'

This isn’t the first time the blonde beauty has made our jaws drop. Just a few days earlier, the mother-of-two posted a series of steamy and suggestive photos with hubby Eric Johnson, in celebration of Valentine’s Day.

The hot couple clearly used the book-turned-movie ‘50 Shades of Grey’ as inspiration as each of the images was captioned, “#50SHADESOFJOHNSON.” Perhaps that explains the nasty bruise on her arm.

Check out one of the images from their photo session below.

jessica simpson and eric johnson 50 shades of grey

(Photo credit: Instagram)