Holmes walked the red carpet at the launch party Monday in New York for Rodriguez's line for Kohls.
"Narciso is a friend and I'm really excited to be here to support him and I think it's wonderful what he's doing and I've been a fan of his for a long time and it's an honour to be here. It's always an honour to wear his clothing," she said.
Rodriguez's line launches Kohl's DesigNation program, which features styles inspired by faraway lands. He used as a starting point a recent trip to Istanbul, and he married elements of Turkish culture with his typical architectural construction.
"The Good Wife" actress Margulies said she not only is a fan of Narciso Rodriguez, she regards him as family. "Seventeen years ago, I met Narciso and I took him to his first CFDA Awards. I was his date. ... It's a history. He was at my wedding, he was there the day my baby was born. We're family."
Emma Roberts said she also appreciated the accessibility of the collection for Kohl's.
"I love when these big designers are collaborating with places to make their stuff more accessible to everybody and also just making kind of more everyday pieces because so many of these designers I love, but they do these gowns that you can't exactly wear to the supermarket."
She said her eye was on Rodriguez's "cute" pajama pant that she'd wear out in the daytime.
Rodriguez for DesigNation will be available in Kohl's stores on Nov. 7. In the spring, Derek Lam takes over the program for a collection inspired by his trip to Brazil.