Kim Kardashian sizzles in a little black dress for guest role on Project Runway

She has already co-owner of three clothing stores, is involved in several reality shows and dozens of approved products.

And is planning the wedding of the year for Kris Humphries NBA star.

But that has not stopped Kim Kardashian to add another role to her resume that she filmed a guest

The fashion magnate and television joined Heidi Klum and fellow judges Nina Garcia and Michael Kors to shoot the next episode in Battery Park in New York yesterday.

Kim, 30, chose a simple but chic little black dress for the occasion that she paired with Christian Louboutin platform pumps impressive.

Keeping Up With the Kardashian star completed her look with a sleek ponytail and earrings, not to mention her engagement ring huge.

Heidi Klum, 38, also chose a set that included all black belt black shoes stiletto asymmetrical black mini-dress and Heidi, but was a little less daring than Kim and decided to wear tights to keep legs covered.

She also wore her hair pulled back in a slick up-do but added a touch of color with a lipstick pink cherry.

Designers have an unusual challenge this week when they had to submit models with their clothes on stilts enormous.