Jessica Simpson poses nude with baby bump, joins naked pregnant celeb club

Jessica Simpson has become the latest famous mum-to-be to pose nude on a magazine cover.

The 31-year-old has stripped off to bare her baby belly for US ELLE magazine's April 2012 issue.

[Related gallery: Celebrity pregnancy fashion]

[Related gallery: Pregnant celebrities ready to pop]

In the accompanying interview, Jessica confirms she is expecting a girl with fiancé Eric Johnson, and as exciting as that is, we can't take our eyes off her gorgeous pregnant body.

Jessica also dished about baby names, saying that while the "non-traditional" name they've chosen isn't shocking, it will be obvious why they've picked it.

Jessica Simpson's pregnant pose on US ELLE magazine's April cover / Carter Smith/ELLE

The Texan is following in a long line of celebs who've shown their naked pregnant bodies to the world.

Demi Moore started the craze back in August 1991 with her Vanity Fair cover.

Demi Moore posed for Vanity Fair and Cindy Crawford posed for W

The actress was pregnant with daughter Scout during the shoot.

Supermodel Cindy Crawford posed while seven months pregnant for W magazine's June issue.

Britney Spears posed for Harper's Bazaar and Christina Aguilera posed for Marie Claire

Britney Spears also showed off her bump (and new black hair) in August 2006 in Harper's Bazaar.

Christina Aguilera covered up slightly more with a leather jacket, but still flashed plenty of pregnant flesh when she posed on the January 2008 issue of Marie Claire.