Nicole Richie - Nicole Richie Hasn't Got Dress

Nicole Richie is still undecided on her wedding dress.

The reality TV star-turned fashion designer - who announced her engagement to Joel Madden last month - admits she has even thought about what gown she wants to wear when she walks down the aisle.

She said: "I have not decided on a dress. I haven't even thought about it!"

Although she is yet to look for a dress, Nicole recently revealed she is ready to start planning her nuptials.

Nicole - who recently completed a tour of Europe to promote her new fashion range Winter Kate and her House of Harlow jewellery collection - said: "I've been on the road. I just got home, and so it's really going to be now that's the time for me to sit down and think about what I want."

Although the 28-year-old beauty is ready to start organising her wedding she and Joel - who raise two children together, daughter Harlow, two, and six-month-old son Sparrow - are yet to pick a date.

When asked by Ellen if she had a day in mind, she replied: "Not yet, but soon."