Heidi Klum knows how to drum up publicity for Project Runway's upcoming season ... strip down!

The show, featuring upcoming designers, will be entering it's 9th season on Lifetime. Heidi, who is showing off the goods in this new promotional photo, recently told the Hollywood Reporter:

    “This is definitely sexier than past campaigns we’ve done for Project Runway. I guess you could say ‘Hans and Franz’ are celebrating season nine!”

Find out which celebrity guest judges will be part of Season 9 ... after the jump.