Princess Diana, left, and Prince Charles attend the Live Aid concert as they acknowledge the crowd with event organizer Bob Geldof, right, at London's Wembley Stadium, England, July 13, 1985. The rock and roll telethon concert, to raise awareness for famine victims in Ethiopia, was broadcast around the world and raised $100 million dollars. (AP Photo/Joe Schaber)

Britain's Princess Diana meets pop stars Elton John, centre, and George Michael of Wham! on her arrival at Wembley Stadium, London, July 13, 1985, for the Live Aid famine relief concert for Africa. This concert, and one taking place in Philadelphia, will be relayed to the world via television. (AP Photo)

Britain's Prince Charles and Princess Diana watch Live Aid, a concert organised to raise money for famine relief in Africa, at Wembley Stadium, London, July 13, 1985. Seated behind are Brian May, left, and Roger Taylor, right, of British rock band Queen. (AP Photo)

Pope John Paul 11 meets The Prince and Princess of Wales at the Vatican during the Royal couple's visit to Italy in April 1985.

Princess Diana of Wales wears a strapless black formal evening dress while attending the opening of the Wolfson Galleries of Classical Sculpture and Inscriptions at the British Museum in London on Wednesday, April 3, 1985. (AP Photo/Peter Kemp)

The Prince and Princess of Wales, Prince Charles and Princess Diana, pose for a family portrait with their sons, Prince William, right, and Prince Harry, at the Kensington Palace in London, England on Oct. 6, 1984. Prince Harry was born on Sept. 15. Prince William was born June 21, 1982. (AP Photo)

The Prince and Princess of Wales, Prince Charles and Princess Diana leave St. Mary's Hospital in Paddington, London with their new baby son on Sept. 16, 1984. Princess Diana carries new baby, Prince Harry who was born on Sept. 15. (AP Photo)

The Prince and Princess of Wales, Prince Charles and Princess Diana leave St. Mary's Hospital in Paddington, London with their new baby son on Sept. 16, 1984. Princess Diana carries new baby, Prince Harry who was born on Sept. 15. (AP Photo)

The Prince and Princess of Wales, Prince Charles and Princess Diana leave St. Mary's Hospital in Paddington, London with their new baby son on Sept. 16, 1984. Princess Diana carries new baby, Prince Harry who was born on Sept. 15. (AP Photo)

The Prince and Princess of Wales, Prince Charles and Princess Diana leave St. Mary's Hospital in Paddington, London with their new baby son on Sept. 16, 1984. Princess Diana carries new baby, Prince Harry who was born on Sept. 15. (AP Photo)

Princess Diana carries her new baby, Henry Charles Albert David, with Prince Charles beside her, as they leave London's St. Mary's Hospital on Sept. 16, 1984, just 22 hours after the birth of the infant, who is third in line to the British throne. The three drove to their London home, Kensington Palace. (AP Photo)

This is a 1984 photo of Princess Diana with sons Prince William, foreground, and Prince Harry. (AP Photo)

Their Royal Highnesses the Prince and Princess of Wales are photographed with their children, Prince William and Prince Henry. William was born June 21 1982 and Prince Henry was Born last September 15. 1984 photo (AP Photo)

Jul 29, 1983; London, UK; HRH PRINCE CHARLES and LADY DIANA SPENCER the day after her wedding day, PRINCESS DIANA at St. Paul's Catherdral. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

Jul 28, 1983; London, UK; LADY DIANA SPENCER Princess Diana of Wales at the Royal College of Oganists. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

Jul 28, 1983; London, UK; HRH PRINCE CHARLES and LADY DIANA SPENCER at a gala event where Diana wore her famous blue velvet dress with low neckline. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

Jul 28, 1983; London, UK; HRH PRINCE CHARLES and LADY DIANA SPENCER at a gala event where Diana wore her famous blue velvet dress with low neckline. Prince Charles is set to wed Camilla Parker Bowles April 8th 2005 in a non royal wedding. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

Jul 28, 1983; London, UK; LADY DIANA SPENCER at a gala event where Diana wore her famous blue velvet dress with low neckline. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

Jul 28, 1983; London, UK; (File Photo: Date Unknown) LADY DIANA SPENCER at an outside event. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

Jul 28, 1983; London, UK; (File Photo: Date Unknown) HRH PRINCE CHARLES and LADY DIANA SPENCER at a outdoor event. Prince Charles is set to wed Camilla Parker Bowles April 8th 2005 in a non royal wedding. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine