Kim Kardashian says Nicole Richie advised her to have a "super classic" wedding dress.

The brunette beauty, who will wear a gown created by close friend Vera Wang when she marries basketball player Kris Humphries in a lavish ceremony in Santa Barbara tomorrow, explained that the fashion designer suggested she should have a "really old Hollywood" style outfit for her big day.

Speaking on Ryan Seacrest's KISS FM radio show, Kim said: "I don't want to give anything away but I will say I had this one vision of what I wanted my dress to look like and Nicole Richie called me and was like, ‘Oh my God, I have this vision for your gown just hear me out please, please, I think you should go super classic, really old Hollywood. You can't go with something trendy and you can't show off too much.'

"So she came over and she was like drawing out all these things and Simone, our stylist, was like we have this vision."

The 30-year-old stunner admits Nicole's ideas "completely changed" what she had originally planned to wed her fiance in.

She added: "It completely changed what I thought I was going with. It's timeless. I changed my mind a few times. Vera Wang has been very patient with me!"

Kim has previously expressed her delight that Vera is making her dress, insisting the fashion designer was her first choice for the job.

She wrote on her blog: "I am so excited to reveal that Vera Wang is my wedding dress designer. Vera has been a close family friend for a long time and we had talked about this moment for years, so when it came to picking my wedding dress designer she was the first person I thought of. No one designs gowns the way she does!"