According to 'The Hollywood Reporter' Klum chose to strip off during a recent photo shoot for Lifetime's new promotional campaign. However, as she has yet to sign off on a final image from the shoot, it's unclear when (if?) pictures will be released.

Klum's desicion to bare all for her show was announced by Lifetime's President and General Manager Nancy Dubuc, who said that it's part of the network's move to embrace the contemporary woman.

In a break with with some past programming and attitudes, Lifetime is now seeking to promote female characters who are brazen, strong, confident and sexy.

For Dubuc, having the mother-of-four show off her enviable model figure is a way of showcasing a woman with all of those attributes. Plus, as she said, "It's Heidi F***in' Klum!"

Klum's no stranger to baring flesh having appeared on the cover of 'Sports Illustrated Swimsuit Edition' and working with lingerie retailer Victoris's Secret as one of their angels. However, she retired from modeling a while ago and officially hung up her angel wings back in 2010.

Klum has served as host, judge and executive producer of 'Project Runway' since its launch on Bravo in 2004. It switched networks to Lifetime in 2009 and this year will launch a spin-off show. 'Project Runway All Stars' pits fan favorites from past seasons against each other in a series of eight hour-long episodes.

'Project Runway' Season 9 premieres this summer, on Lifetime.