Heidi Klum Nude: Star Poses In Body Paint For Astor Ad (PHOTO)

Looking good, Heidi Klum! The fashion icon posed for a new ad for the beauty brand Astor to celebrate its 60th anniversary, and left little to the imagination.

Klum appears nude in the new ad, but is covered with an elaborate and colorful design by makeup artist Joanne Gair.

The "Project Runway" host, who has been in the news lately due to her split from her husband of seven years, Seal, wrote about her experience on her blog:

It took 12 hours for Joanne to complete my look, but this actually wasn't the first time she has painted me from head to toe. This was probably close to the 13th time I've been body painted by her, so I'm used to getting it done--the process takes awhile, so you have to be good at being patient!

While sitting still for hours just for one outfit -- or lack thereof -- may seem extreme, Klum is definitely used to all the preparation. She and her soon-to-be ex used to dress up in extravagant costumes and body art for their annual Halloween parties.

Check out Heidi's colorful photo below. For more, head over to Heidi's blog.