Australian model Miranda Kerr has announced the arrival of her fourth child – a baby boy!

The 40-year-old businesswoman revealed on Snapchat and Instagram that she’s given birth to her fourth boy – yep, she’s officially a boy mum now!

Miranda posted a photo of a beautiful bunch of blooms, alongside a pair of teeny socks, and a blanket revealing her baby’s name – Pierre.

“We are overjoyed by the arrival of our little ray of sunshine, Pierre Kerr Spiegel,” she captioned the photo.

“We couldn’t be more excited to welcome our fourth son into our family. Feeling so very blessed.”

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A post shared by Miranda Kerr (@mirandakerr)

Miranda is mum to three boys – three-year-old Myles and five-year-old Hart with her husband and Snap CEO Evan Spiegel, 33. She also shares 12-year-old son Flynn with ex-husband Orlando Bloom.

Fittingly, she revealed her fourth pregnancy on Snapchat in September last year.

“So excited to announce baby no. 4,” she captioned her pregnancy reveal photo, before following up with another snap saying, “And it’s a boy.”

She’s previously said that she always wanted three boys, but has been open to having more children. Congratulations beautiful lady!