The live, 3D-virtual fashion show will be created with high-definition holograms, allowing the clothes and accessories to walk, dance, and interact.

The model-less fashion show is powered by Musion Systems Limited. These are the guys who also did the fantastic Gorillaz live appearance at the MTV Awards in Lisbon 2005.
The Target Model-less Fashion Show will employ an illusionary technique that uses Eyeliner foil to give two dimensional images the illusion of depth. The installations are recorded, played back and projected in true High Definition giving the holograms unprecedented quality and clarity.



The Target Model-less Fashion Show will feature men’s, women’s, bridal, and maternity collections from Bowie by Keanan Duffty for Target, Erin Fetherston™ for Target, Isaac Mizrahi for Target, Liz Lange for Target, and Mossimo for Target as well as jewelry, handbags, and shoes from Dominique Cohen for Target and HOLLYWOULD for Target.
The Target Model-less Fashion Show will take place on Tuesday, November 6th, and Wednesday, November 7th, in Vanderbilt Hall at Grand Central Terminal on E. 42nd Street between Park and Lexington Avenues.

I love technology, but hey, I prefer seeing real fashion models like Gisele Bündchen and not some hologram.
See also the Musion site.