Geri Horner shared the first snap of baby Montague George Hector Horner.
The 44-year-old posted the adorable snap on her Instagram, saying: "Monty is two weeks old today."
In the picture, Geri and her Formula One husband Christian, 43, cuddle up together with their little boy as Christian tenderly kisses Monty's head and, in the background, a personalised baby blanket can be seen.
The singer welcomed her first child with her spouse last month and shared the exciting news on her Twitter, along with a black and white picture of her holding the baby's foot.
Geri Horner has shared the first picture of baby Montague
Geri and her husband Christian Horner announced the birth of baby Monty two weeks ago
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She said: "Christian and I are delighted to announce our baby boy was born this morning weighing 7lbs 8oz."
Monty shares his birthday with Geri's former bandmate Emma Bunton, 41.
Geri already has a 10-year-old daughter with her ex Sacha Gervasi and Christian has a young daughter Olivia with his ex-partner of 14 years, Beverly Allen.
The Spice Girls star recently revealed her joy at conceiving naturally.
Geri Horner says 'it's a miracle' she conceived son naturally at 44
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Geri shared a snap of the baby's foot when he was born
Monty is Geri and Christian's first child together
"I feel incredibly lucky to have conceived naturally at my age, 44," she told The Sunday Times. "I see it as a miracle."
She and Christian married in 2015 shortly after he split from Beverly, who had given birth to their daughter only months before.
Christian's parents refused to attend his wedding to the singer at the time, not approving of the romance following his break-up, but more recently it seems that Christian and Geri have been making amends with his family.
They appear to be patching things up as they were spotted attending the Grand Prix in Monaco together last summer.