Gigi and Bella Hadid reveal shocking way they discovered stranger was their biological sister

Gigi and Bella Hadid have opened up about discovering that they have another sibling.

Now, it's common knowledge that the supermodels - who have walked for fashion houses like Victoria's Secret, Versace and Tommy Hilfiger - also have a brother Anwar Hadid. Their parents are Mohamed Hadid and Yolanda Hadid, who divorced in 2000 after six years of marriage.

Yolanda went on to marry Grammy Award-winning producer and composer David Foster, but they also divorced in 2017. Mohamed has not remarried, but had been engaged to Second Wives Club star Shiva Safai.

For most of their lives, the Hadid children thought there was just the three of them, but it turns out there's a fourth child — that being 23-year-old Aydan Nix.

The Hadid sisters recently confirmed the news of them having another sibling in a heartfelt statement.

Siblings Gigi, Anwar, and Bella Hadid pictured together in 2015 (Chance Yeh/WireImage)

Who is Aydan?

Aydan is 23 and while brought up in Florida, she now lives in New York where she recently graduated from the Parsons School of Design in Manhattan.

The youngest Hadid reportedly has ambitions to become a designer, stylist and influencer.

Her mom, Terri Hatfield Dull, had a brief relationship with Mohamed Hadid following his split from Yolanda.

What have Gigi and Bella said about their half-sister?

In a statement issued to Mail Online, the supermodels said: "Over 20 years ago, our dad, while single, had a brief relationship that led to a pregnancy.

"Aydan was born and raised in Florida, growing up with the man she lovingly knew as her father until his sudden passing when she was 19."

It continued: "She’s spent time with all of us, including our dad, and we’ve cherished this unexpected and beautiful addition to our family.

"As siblings, we’ve had many open and loving conversations — with Aydan included about how to support and protect her.

"Aydan and her family value their privacy, and we fully respect that. We kindly ask others to do the same and honor her wish and right to her anonymity as she continues her life as a young woman in New York."

Aydan connected with her famous siblings in 2023 (@toospoiled/Instagram)

How did Aydan learn about her connection to the Hadid family?

Following the passing of the man she knew as her father, Aydan did a genetic test 'out of curiosity' and discovered she had a biological connection to the Hadids and that Mohamed was her dad.

She went on to connect with her half-siblings in late 2023 and since then Aydan has been embraced 'with open arms' from her famous family.