Supermodel Cindy Crawford reminisced that she was worried about looking "frumpy" in front of Prince Williams when he was a teenager when she visited him at Kensington Palace.

Crawford shared that she was worried about her looks when invited to the Kensington Palace by late Princess Diana, reports femalefirst.co.uk.

"I was like, 'What do I wear?' because Diana had a teenage son and I didn't want to be too frumpy, but this was Kensington Palace and I wanted to be invited back," Crawford shared.

The 49-year-old was stunned when late Princess Diana, who also had younger son Prince Harry with husband Prince Charles, herself invited Crawford to visit.

"She was so lovely because she actually called my office herself. She said, 'Hi, it's Princess Diana' and my assistant was like, 'Yeah right'. But it actually was. I was going to London to do a thing for Pepsi, so I arranged to meet them at Kensington Palace. It was cool for me," Hello magazine quoted the "Fair Game" actress as saying.