Pink has never been one for publicity or massively oversharing like many other celebs these days... *Kardashians cough cough*
This is so true in fact, that she managed to keep her pregnancy a secret for quite some time. We literally had no idea!
She took to social media to make the official announcement, by posting the most adorable pic of herself, her bump and her little girl Willow.
Congrats Pink, sooooooooo cute!