The 38-year-old musician's husband-professional motocross racer Carey Hart took to Instagram, praising his second child's bravado.
"Lil man just started walking and took a good slam yesterday. Bloody nose and all! Even has the war wound to prove it. #1stOfMany #RunsInTheFamily," wrote Hart, alongside the smiling picture of Jameson showing off his bruised nose.
He next posted another photo of his son, which showed a small cut on the baby boy's upper lip.
The couple also share six-year-old daughter, Willow.
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