Princess Eugenie and Jack Brooksbank are celebrating their nuptials surrounded by celeb friends.
As the couple prepared tie the knot at St Georges Chapel in Windsor Castle, their famous friends were seen arriving ahead of the vows ready to take their seats.
Downton Abbey creator Julian Fellowes was seen heading into the chapel, as was comedian Jimmy Carr with his partner Karoline Copping.
Naomi Campbell arrived shortly after along with Cara Delevingne, who showed up wearing a top hat and tails. Stephen Fry and his husband were there to celebrate the day, with the comedian looking happy and healthy after recent health troubles.
Pixie Geldoff and artist Tracy Emin were also seen strolling into the castle, along with Holly Valance, Liv Tyler and Demi Moore. The vows kick off as of 11am, with guests being required to be seated an hour before. They will be entertained with the Royal Philharmonic Orchestera while they wait.
Eugenie is well connected in the celebrity world, with pals including Ed Sheeran, Ellie Goulding, Chelsy Davy and Kate Moss – and its understood all of these celebs will be in attendance.
Robbie Williams and his wife Ayda Field arrived with Robbies mum – who lost her hat with a rogue gust of wind.
Their daughter Teddy will be a bridesmaid in the wedding party.
The royal will be getting married with sister Beatrice by her side as her maid of honour, with dad Prince Andrew giving her away and mum Sarah Ferguson giving her best mother of the bride support.
Duchess of Cambridge Kate Middletons daughter Princess Charlotte will also be a bridesmaid and Prince George will be a little page boy.
The wedding is being aired exclusively on ITVs This Morning, with Eamonn and Ruth presenting from just outside the venue.
All eyes are now on the brides arrival to see which designer she chose for her dress. Its speculated shell wear a backless dress to bear her surgical scar from her surgery aged 12 to correct her scoliosis.
Its been rumoured both Prince Philip and Camilla, Duchess of Cornwall, will miss the big day, one due to ill health and the other due to a previous committment.
The wedding will be followed by a black tie reception at the Royal Lodge in Windor Great Park.