Former The Ellen DeGeneres Show star Sophia Grace Brownlee has officially welcomed her third child, growing her family once again at age 23.

The British influencer and internet sensation took to Instagram to break the exciting news, sharing sweet photos holding her newborn daughter and revealing her name: Ariella Bleu.

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Her baby girl arrived on October 4, joining older brother River, 3, and older sister Athena, 22 months.

Sophia Grace announces she’s expecting baby number three

A glowing Instagram update

In her social media reveal, Ms Brownlee posted sweet photos cradling her newborn, writing to her 1.5 million Instagram followers that she was thrilled to officially welcome baby Ariella into the world.

Fans and followers quickly flooded the comment section with congratulations for the mother of three, marvelling at how fast her family is growing.

“She’s so gorgeous,” her former TV partner, Rosie McClelland, commented on Instagram.

“Congratulations! Such a beautiful name,” a fan wrote.

“U look amazing, darling, congratulations,” a third echoed.

“Congratulations on the new addition to your beautiful family,” a fourth person chimed in.

The birth comes just four months after the influencer announced her pregnancy back in June.

Keeping love out of the spotlight

Despite spending much of her childhood in the public eye, Ms Brownlee has deliberately kept her relationship and the identity of her children’s father completely private.

She previously explained her decision to shield her partner from public scrutiny, sharing that she wanted a part of her life to remain exclusively hers.

She has previously revealed that while she might introduce him to her audience one day, it will only happen when he feels comfortable.

From viral child star to young mum

Ms Brownlee first shot to global fame in 2011 at just eight years old after a video of her and her cousin, Rosie McClelland, performing Nicki Minaj’s Super Bass went viral.

The iconic performance landed the duo regular appearances on The Ellen DeGeneres Show, where they interviewed A-list celebrities, walked red carpets, and became fan favourites worldwide.

Now 23-years-old, Ms Brownlee has built a massive following on YouTube and social media, transitioning from child star to dedicated mum.

Speaking on the Private Story podcast earlier this year, she reflected candidly on becoming a mother at 19.

“I don’t regret doing anything because I’m quite happy with where I am now,” she shared, adding that she feels “blessed” for her growing family as she takes on her newest chapter with three little ones under four.