Everyone’s got a past. Some people’s just happen to be documented.

The year was 1998.

Princess Mary of Denmark was Mary Donaldson, working away at an advertising agency in Sydney. She was still two years away from meeting Prince Frederik of Denmark.

Her advertising agency pitched an ad for V-Line trains and Mary starred in it as an extra.

You can watch the ad below. But let us warn you – it’s kind of creepy.

Does this ad make you want to buy a two-for-one train ticket? Didn’t think so.

Click through the gallery below for more photos of Princess Mary and her family.  

Princess Mary.

Princess Mary.

Princess Mary.

Princess Mary.

Princess Mary.

Princess Mary.

Princess Mary.

Princess Mary.

Princess Mary.

Danish Crown Prince Frederik and Crown Princess Mary with children, Prince Christian, Princess Isabella and the royal twins Princess Josephine and Prince Vincent pose for a photo at the viewpoint Telecommunications house in the city Qeqertarsuatsiaat during a visit to Greenland on August 5, 2014. AFP PHOTO / SCANPIX DENMARK / KELD NAVNTOFT +++ DENMARK OUT +++ (Photo credit should read KELD NAVNTOFT/AFP/Getty Images)

Princess Mary.

GRASTEN, DENMARK - JULY 24: Crown Prince Frederik of Denmark and Crown Princess Mary of Denmark with Princess Isabella of Denmark, Prince Vincent of Denmark and Princess Josephine of Denmark attend the annual Summer photo call for the Royal Danish family at Grasten Castle on July 24, 2014 in Grasten, Denmark. (Photo by Mark Cuthbert/UK Press via Getty Images)

Princess Mary.

LUZECH, FRANCE - JUNE 11: Crown Princess Mary of Denmark and Princess Josephine of Denmark attend a photocall at Chateau de Cayx on June 11, 2014 in Luzech, France. (Photo by Patrick Aventurier/Getty Images)

Princess Mary.

LUZECH, FRANCE - JUNE 11: Crown Princess Mary of Denmark and Princess Josephine of Denmark attending a Photocall at Chateau de Cayx on June 11, 2014 in Luzech, France. (Photo by Mark Cuthbert/UK Press via Getty Images)

Princess Mary.

VERBIER, SWITZERLAND - FEBRUARY 14: Princess Mary of Denmark and Princess Josephine of Denmark meet the press, whilst on skiing holiday on February 14, 2014 in Verbier, Switzerland. (Photo by Harold Cunningham/WireImage)

Princess Mary.

VERBIER, SWITZERLAND - FEBRUARY 14: Crown Prince Frederik of Denmark, Crown Princess Mary of Denmark, Prince Vincent and princess Josephine pose during their annual winter family holiday photocall on February 14, 2014 in Verbier, Switzerland. (Photo by Julian Parker/UK Press via Getty Images)

Princess Mary.

AMSTERDAM, NETHERLANDS - APRIL 29: (L-R) Princess Mary of Denmark and Prince Frederik of Denmark arrive to attend a dinner hosted by Queen Beatrix of The Netherlands ahead of her abdication at Rijksmuseum on April 29, 2013 in Amsterdam, Netherlands. (Photo by Robin Utrecht - Pool/Getty Images)

Princess Mary.

COPENHAGEN, DENMARK - AUGUST 24: Crown Princess Mary of Denmark attends the St. Petersburg Loye Prize and Medals ceremony at the Danish Museum of Art & Design on August 24, 2012 in Copenhagen, Denmark. (Photo by Torsten Laursen/WireImage)

Princess Mary.

Crown Prince Frederik And Crown Princess Mary Of Denmark With Prince Vincent Of The Danish Royal Family Hold A Family Photocall At Grasten Palace In Southern Denmark. (Photo by Julian Parker/UK Press via Getty Images)

Princess Mary.

GRASTEN, DENMARK - AUGUST 01: Crown Prince Frederik of Denmark and Crown Princess Mary of Denmark, Princess Isabella and the twins Vincent Frederik Minik Alexander and Josephine Sophia Ivalo Mathilda pose during a photocall at Grasten Castle on August 1, 2011 in Grasten, Denmark. (Photo by Christian Augustin/WireImage)

Princess Mary.

Crown Prince Frederik And Crown Princess Mary Of Denmark With Their Children, Prince Christian, And Princess Isabella Attend The Christening Of Prince Joachim And Princess Marie Of Denmark'S New Son, Prince Henrik Carl Joachim Alain, At Mogeltonder Church. (Photo by Julian Parker/UK Press via Getty Images)

What’s the strangest ad you’ve ever seen?