Tamara Ecclestone kept her pregnancy a secret until she gave birth to her baby girl Serena.
Serena's arrival is a welcome addition to Tamara, 36, and Jay Rutland's brood as they have given their daughter Sofia, five, a little sister.
Her pregnancy was one of the best kept secrets in the showbiz world.
She took a leaf out of the youngest Kardashian Kylie Jenner's book when it come to concealing her pregnancy from everyone.
F1 icon Bernie Ecclestone's daughter managed to even hide her baby news from her loyal 450k followers.
They have been living out their days on Bernie's luxury yacht off the coast of Croatia for the most of the coronavirus pandemic.
But mostly, the well-kept secret was a result of very clever Instagram posts.
Tamara pulled it off by getting her daughter Fifi to pose sit on her lap for photographs while they were on holiday.
The mother-of-two also took close-up selfies and shared them with her followers.
She even gave birth in secret in a hospital near Bern in Switzerland a week ago.
Baby news only emerged when her dad Bernie let slip he was thrilled to be a grandfather.
He told MailOnline: "I’m absolutely thrilled to be a grandfather again.
"Tamara gave birth to a little girl seven days ago in the same hospital that my son Ace was born in. Mother and baby are doing brilliantly. She’s a beautiful little thing.
"She has named her Serena and both of them have been already out on the town together around Gstaad."
Congratulations, Tamara and Jay!
