The birth of the Royal Baby has already dominated headlines. But now, another famous family has also welcomed their third child.

Dwayne “The Rock” Johnson and his partner Lauren Hashian announced the birth of their daughter, Tiana.

The Rampage actor took to Instagram and posted a picture of himself holding the new-born to his chest.

“Skin to skin. Our mana. Blessed and proud to bring another strong girl into this world,” he wrote.

“Tiana Gia Johnson came into this world like a force of nature and Mama @laurenhashianofficial labored and delivered like a true rockstar.”

In the post, Dwayne Johnson revealed that he participated in the delivery, writing: “I was raised and surrounded by strong, loving women all my life, but after participating in baby Tia’s delivery, it’s hard to express the new level of love, respect and admiration I have for @laurenhashianofficial and all mamas and women out there.”

He urged other men to “be by your lady’s head when she’s delivering, being as supportive as you can.. holding hands, holding legs, whatever you can do.”

The Hollywood star added: “If you really want to understand the single most powerful and primal moment life will ever offer – watch your child being born.

“It’s a life changer and the respect and admiration you have for a woman will forever be boundless.”

The 45-year-old father, who is an American actor, producer, and semi-retired professional wrestler, wrote: “Your crazy dad has many responsibilities and wears many hats in this big ol’ world, but being your dad will always be the one I’m most proud to wear.”

He closed his post stating: “Oh and one more thing.. you’re gonna love rollin’ in daddy’s pick up truck.”

Both Dwayne and Lauren are already happy parents to two-year-old daughter Jasmine and Johnson has a child from his former marriage.

Heartiest congratulations to the couple and a warm welcome to baby Tiana to this big wide world!