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Hailey Bieber<\/strong><\/a> is showcasing a fresh style after baby, baby, baby.<\/p>\n The model debuted lighter, honey blonde hair on her Instagram Stories Sept. 28, more than a month after she gave birth to her and husband<\/a> <\/strong>Justin Bieber<\/strong><\/a>‘s first baby.<\/p>\n The “Peaches” singer and his wife, a natural blonde who previously sported medium and dark brown hair<\/a> over the past year, announced the arrival of their son, Jack Blues Bieber<\/strong>, Aug. 23.\u00a0<\/p>\n Alongside a closeup pic of\u00a0Hailey holding the baby’s foot<\/a> , Justin wrote on Instagram at the time, “WELCOME HOME.”<\/p>\n His mother, Pattie Mallette<\/strong>, has since shared several tributes to her first grandchild<\/a>. “Oh my heart. Welcome baby Jack!!” the 49-year-old wrote on her Instagram Stories soon after the baby’s birth. “I love you so much! Thank you Lord. What a miracle!”<\/p>\n Jack is the second grandchild and first grandson for Hailey’s dad, Stephen Baldwin<\/a><\/strong>, who is just as enamored by the infant<\/a>.<\/p>\n<\/div>\n