Queen Elizabeth II has met all sorts of cool celebrities. But today, on the 15th anniversary of Princess Diana's death, we've taken a closer look at Princess of Wales' most glamorous moments. One of our favorites? A rare time when royal celebrity and fashion celebrity collided.

Kate Moss and Princess Diana, as far as we know, didn't have much of a relationship (unlike another famous royal-model pairing, Sarah Ferguson and Naomi Campbell). But in 1997, the pair crossed paths at Christie's in New York. The royal was on hand to oversee the auction of 79 of her dresses, the sale of which would raise funds for the Royal Marsden Hospital Cancer Fund and the AIDS Crisis Trust. It was a buzzed-about event, drawing the likes of Nan Kempner and Barbara Walters.

Kate Moss also made an appearance, resulting in the fabulous photo opp below.

Take a look and remember Princess Diana for today's Fashion Flashback.

PHOTOS:

princess diana kate moss

princess diana kate moss

Take in Princess Diana's chic fashion:

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  • 1969

  • 1971

  • September 1980

  • January 1981

  • March 1981

  • May 1981

    With Prince Charles at Craigowan Lodge on the Balmoral Estate. (Tim Graham/Getty photo)

  • June 1981

  • July 1981

  • December 1982

  • July 1981

    Posing for pictures on her wedding day. (Lichfield/Getty photo)

  • July 1981

    More wedding pictures! (AP photos)

  • November 1982

    At a banquet at the Guildhall in London. (Anwar Hussein/WireImage photos)

  • March 1983

  • June 1983

  • May 1985

  • July 1985

    At the premiere of "A View to a Kill" in London. (Tom Wargacki/WireImage photos)

  • October 1985

  • October 1985

  • November 1985

    Wearing a Victor Edelstein gown to a White House State Dinner in Washington, DC. (Pool/Tim Graham Picture Library/Getty photos)

  • December 1985

  • January 1986

  • July 1986

  • December 1986

  • May 1987

  • January 1988

  • November 1988

  • March 1989

  • April 1989

  • August 1990

  • December 1990

  • September 1990

  • April 1990

  • July 1990

    Leaving Cirencester Hospital in England after Prince Charles broke his arm during a polo match. (AP photo)

  • July 1991

  • May 1992

  • September 1991

  • April 1991

  • February 1992

  • April 1992

  • January 1993

    At Indian Castle Beach. (Getty photo)

  • June 1994

    At the Serpentine Gallery in London, wearing a dress by Christina Stambolian. (Jayne Fincher/Getty photos)

  • June 1995

  • August 1995

    Sitting with Prince Harry during V-J Day celebrations in London. (AP photos)

  • November 1995

    Meeting with Argentinian president Carlos Menem in Buenos Aires. (AP photos)

  • June 1995

  • September 1996

    Arriving at a cancer research benefit in Washington, DC. (AP photos)

  • December 1996

    Walking through the Metropolitan Museum of Art in New York to attend the Costume Institute Gala. (AP photos)

  • March 1996

  • June 1996

  • July 1996

  • January 1997

    On a British Red Cross mission to highlight the evil of land mines in Luanda. (Getty photo)

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