"I love your music, your kids are beautiful but your husband, I'm sorry, lacks the responsibility your kids need in his care. I know, hit your fave button. I'll miss your posts."
But rather than block the troll, Pink wrote a lengthy response to her which has since received more than 40,000 likes.
"You sound well-informed on the performance of my husband as a father," the singer wrote.
"Answer me this: How often have you watched him parent? Do you know my children? Are you aware of their development? Even better: What are your credentials in parenting expertise? Are you a perfect parent? S — t, are you even a parent? A psychologist? A teacher?
"These are bold statements from a social media spectator. I won't even unfollow you. It's not worth the trouble. You sound like a person that could learn something by looking at all of this."
Pink ended her epic response by telling the critic, "Gold bless your perfect path. I have no interest in that myself. However, do check in from time to time to let us all know what other teachings you may have for us, oh perfect f — king stranger."