Who says Christian Louboutin, Manolo Blahnik, and Jimmy Choo get to corner the market when it comes to runway shoes?

Zac Posen certainly isn't. On the heels of a collaboration with Target, the designer teamed with more affordable shoe giant Steve Madden on the footwear that appeared in Posen's Z Spoke Spring 2011 New York Fashion Week runway show.

Making their Fashion Week debut, Madden's shoes included metallic green (left) as well as black sky-high platform sandals with ankle straps and buckles, black peep-toe stiletto lace-up ankle booties, and ladylike lavender pumps with wicked heels.

So, will Claire Danes, Kimora Lee Simmons, or Kristen Cavallari -- all in attendance at the show -- swap out their super expensive shoes for a brand most Americans can find at their local mall? The shoes were made specifically for the runway, so probably not. But do we expect to see a rash of fashion fans teetering in similarly styled Steve Madden heels? Before you can say "recessionista."

And, if you'd like to recreate Posen's beauty looks from the show, here's how.

StyleList is your source for New York Fashion Week. Read our runway reviews and backstage beauty reports. Gawk at fashionable celebrities. Watch our video interviews with style personalities. Ruminate on it all with our roundups of Spring 2011 trends.