Turning four is a big deal and Meghan Markle is celebrating daughter Lilibet achieving the milestone with an Instagram blitz of intimate photos — and even a video of her and Prince Harry dancing in the delivery room on the day she was born.

In an extraordinary insight into their private lives, the former senior royals can be seen in a viral TikTok-style video busting a move.

Meghan and Harry are known to fiercely guard the privacy of Lilibet and Archie but appear to have changed their tune.

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Clutching her very pregnant belly and with an IV port in her left arm, in the video, Meghan looks calm and happy as she twerks to The Baby Momma Dance by Starrkeisha from 2013.

Prince Harry also makes an appearance throwing down his best dad moves.

SEE THE VIDEO IN THE PLAYER ABOVE

Meghan joked that the dancing was a last resort to bring on the birth, given Lilibet was a week overdue at the time.

“Four years ago today, this also happened. Both of our children were a week past their due dates… so when spicy food, all that walking, and acupuncture didn’t work - there was only one thing left to do!” Meghan wrote alongside the video.

Meghan has also shared a photo of a touching moment between Prince Harry and his then baby daughter lovingly making eye contact and another of the pair barefoot and dressed casually walking on a dirt road while holding hands.

“The sweetest bond to watch unfold. Daddy’s little girl and favorite adventurer,” she wrote.

The first social media post in the birthday photo blitz was of Meghan, apparently on a boat, make-up free and with windswept hair cuddling Lili.

“Happy birthday to our beautiful girl! Four years ago today she came into our lives - and each day is brighter and better because of it. Thanks to all of those sending love and celebrating her special day!”

Lilibet is Meghan and Prince Harry second child, their first, Archie, is two years older. She was born on June 4, 2021 — a year after the pair’s infamous “Megxit” from the UK and royal duties.

Her full name is Lilibet Diana Mountbatten-Windsor, a nod to Prince Harry’s grandmother Queen Elizabeth and his mother Princess Diana.