Holly Willoughby fans stunned as she reveals mega-famous soap star is her cousin

They had no idea the two were related

Holly Willoughby has delighted fans by revealing she’s related to soap royalty.

The This Morning presenter shared a lovely snap of her posing with EastEnders star Tamzin Outhwaite and an older lady.

The three blondes beamed for the camera, evidently enjoying some festive celebrations.

But many of Holly’s Instagram followers were more surprised by the accompanying caption.

The mum of three wrote: Me and [Tamzin] with our Nonna Matriarch. In true EastEnders style: family! FYI: [Tamzin] is my cousin.”

Tamzin is actually a blood relative of Hol’s hubby Dan Baldwin – and in a previous interview she described pal Holly as having become family.

“She’s family now she’s married my cousin Dan Baldwin,” the 46-year-old told The Mirror.

Tamzin shared a similar snap and explained that she had been spending Boxing Day at the Baldwins’ – and that their lovely companion, Nanny Lina, is 87.

Looking incredible! Good genes attract good genes!

Tamzin, who is soon making her way back to Walford, also posted an hilarious snap of her alone a couple of hours later.

With her pony tail dangling over her face, it appeared the festivities were starting to take their toll. (She still managed to look gorgeous, though!)

Bring on January!