Now she's hoping to provide an actual princess-to-be, Kate Middleton, with some wares fit for the royal life.
Beckham, who's expecting her fourth child, has been asked to send pieces from her collection to Kate, 29, for her upcoming public role as a member of the royal family once she weds Prince William.
"Apparently, she likes my clothes and has asked to see a selection," the designer said at her New York Fashion Week show, Daily Telegraph style writer Hilary Alexander reports.
The designer, 36, was unveiling her Fall/Winter 2011 collection when she spoke of the "honor" of dressing Middleton. "It's tremendously exciting," she said.
Beckham also said she believes the prince's fiancée will make a perfectly stylish princess.
Kate is "a beautiful young girl," said Beckham. "She has a wonderful figure and I think she wears clothes beautifully."