Singer Pink has spectacularly lashed out at trolls in Instagram after her husband's parenting skills were criticised.
Carey Hart recently posted a photo of him and his two-year-old son Jameson on a dirt bike, prompting hordes of angry comments.
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"Where is Jamison's (sic) motorcycle helmet. He is wearing a bicycle helmet," one user wrote.
"A professional would never put his Son in that kind of danger. It only takes one second to change your entire life," another said.
Mr Hart was previously a professional motocross rider. His brother died in 2008 due to injuries sustained in a motocross competition.
The comment turned up on a post made by Pink, who joked in the caption she could not parent without Instagram's help.
"With your husband being in the spotlight so often with his complete lack of regard for proper care or concern at times with your kids, this comment isn't funny, albeit Jameson is adorable," the commenter wrote.
"I love your music, your kids are beautiful, but your husband, I'm sorry, lacks the responsibility your kids need in his care."
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Pink quickly responded to defend Mr Hart.
"You sound well informed on the performance of my husband as a father," she said.
"Answer me this: how often have you spent time with my husband? How often have you watched him parent? Do you know my children? Are you aware of their development?"
She later questioned whether the commenter should have become involved in the first place.
"Are you a perfect parent? Are you even a parent?... These are bold statement from a social media spectator."