The Canadian stylist and her husband Ben are “flying from Toronto to Sydney” to meet the Duke and Duchess of Sussex, and will be there in an “unofficial” capacity.

This means that they will pay for their own expenses during the trip — unlike the 10 staff travelling with the royal couple.

Prince Harry and Meghan Markle are to undertake a 16-day tour of Australia, New Zealand, Fiji and Tonga, starting with a visit to the Sydney Opera House on Tuesday.

The duchess, 37, will have to change her outfits up to three times a day during the royal tour, so could rely on her stylist best friend for help, according to theTimes.

Jessica, 38, and her TV presenter husband Ben, 42, who is the son of former Canadian prime minister Brian Mulroney, currently reside in Toronto.

Meghan and Jessica are thought to have met when Meghan first moved from LA to Toronto, in 2011, to film Suits.

They’re said to have bonded over a shared love of yoga, and even holidayed together in Italy in 2016.

Jessica helped Meghan choose her TV wedding dress for Suits — and was reportedly flown over to Kensington Palace on January 10, to join the bride-to-be in fittings for a bespoke wedding gown.

Jessica was one of just three people, along with Meghan’s mum Doria and Harry’s mate/Soho House consultant Markus Anderson, to join the Suits actress and Harry in the royal box at the Invictus Games.

Jessica’s daughter Ivy, and twin sons Brian and John, starred in the May royal wedding as bridesmaid and page boys.

The 16-day royal trip will be packed with 76 engagements, with the Invictus Games Sydney 2018 taking centre stage.

Kensington Palace announced that the trip would coincide with the Invictus Games, which is being held in Sydney from October 20-27.

The destination for the Duke and Duchess of Sussex’s first official trip as husband and wife mimics the prince’s parents first overseas tour, as they visited Australia in 1983, shortly after their own wedding.

Among other highlights will be a visit to the world-famous Taronga Zoo where the pair will be able to meet two koalas and their joeys.

Prince George delighted the world as he joyfully interacted with a bilby named after him during the Duke and Duchess of Cambridge’s 2014 tour.

This article was originally published inThe Sun and has been reproduced her with permission.