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P!nk isn't letting some Twitter users get away with criticizing her parenting skills. 

The singer is responding to backlash over some photos of her two-year-old daughter Willow riding on a motocross bike with her father Carey Hart, who is a professional racer. 

Hart had posted the photos over the weekend, showing the girl seated in front of him on a bike.  Willow did not have a helmet on, but was wearing headphones to protect her ears. 

P!nk took to Twitter, telling followers:

The singer also retweeted several of the nasty messages she received, making it clear to the senders she wasn't concerned with their opinions.   

P!nk is currently on the second North American leg of her "Truth About Love" tour.  She was forced to reschedule several dates due to a case of laryngitis last week.