Jamie Oliver and wife Jools reveal the name of their baby boy

Jools Oliver has kept the name of her fifth child with husband Jamie Oliver tightly under wraps, but on Monday (Aug. 22) the proud mom couldn't contain her excitement anymore - and the moniker is one that Hello! predicted just hours earlier. Two weeks after their baby boy's arrival, Jools posted a piece of adorable wall art that reads "Dream Big River" on Instagram. The name River is in keeping with the couple's trend of giving their children unusual names.

Within 30 minutes of Jools sharing her post, it had received almost 2,000 likes as her followers rushed to comment on the chosen name. "So original and beautiful," wrote one, with another adding: "Beautiful and unique! Big love."

TAP TO VIEW GALLERYInstagram 'DREAM BIG RIVER' Jools Oliver has revealed the name of her baby boy on Instagram

The couple are already parents to Poppy Honey Rose, 14, Daisy Boo Pamela, 12, Petal Blossom Rainbow, six, and five-year-old Buddy Bear Maurice, and Jools previously insisted everyone should have fun when it comes to naming their babies.

From Ode Mountain to Rocket Zot: the most unique celebrity baby names

She told Gurgle: "They all have more than one name because I couldn't decide. I'm not sure where Petal Rainbow came from – apparently it's a My Little Pony! I wanted to call her Rainbow but Jamie told me to calm down.

Jamie Oliver's family group shot Jamie and Jools are also parents to Poppy, Daisy, Petal and Buddy

"With Buddy it was quite fun choosing a boy's name, as I hadn't done it before. And I hate people's opinions on names. Whatever you call your baby is your decision."

And Jamie – who has confessed in the past that Jools has final say over the names – said earlier this year that her fifth pregnancy came as a shock to the whole family.

He told Closer: "Jools wanted one more, so what could I do? Women have the final control. She just loves being a mum and she's fantastic at it."

HELLO! Canada magazine is available for your tablet and smartphone. Get HELLO! Canada, PEOPLE, Vanity Fair and over 100 more of the world’s best magazines for one low monthly price at Texture by Next Issue. CLICK HERE to sign up for a free trial.