The 'Just Like Fire' singer is currently expecting her second child with her partner Carey Hart and judging by the size of her baby bump, she's already well into her pregnancy.
She kept that one quiet, right?!
In her photo, that she shared on Saturday 12 November, Pink (real name Alecia Moore) can be seen holding onto her huge bump while cuddling up to her daughter, Willow, five.
She added the caption: "Surprise."
Fans were quick to comment on Pink's post, congratulating her on her baby news. One follower said: "Yes, girl, yes!! Congrats to your beautiful family." Another said: "Yay congratulations! And what a great Pic!"
Pink gave no further details surrounding her pregnancy - including her unborn baby's sex or due date.
Pink has openly spoken about her hopes to expand her brood with Carey in the past.
Back in September 2013, she told E! News: "I would like five, but I kind of started late so yeah, we'll see." Gushing about her daughter Willow, she then joked: "If I'm blessed to have more children, and they're not as cool as her..."
The following year, Pink confused fans by seeming to suggest she was expecting. She had tweeted: "I love that every time I find a box of Girl Scout cookies I'm pregnant. Guilty: I'm having a thin mint :)."
At the time, however, Carey appeared to debunk the rumours.
He and Pink married in 2006, reuniting in 2010 after a brief separation.
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