Nicole Richie just took to Instagram to wish her 13-year-old daughter, Harlow a happy birthday.
The Simple Life alum shares Harlow, as well as 11-year-old Sparrow, with husband, Joel Madden.
"Here you are at 3 months old. Today you are 13," the proud mom wrote with a never-before-seen throwback of Harlow. "You light up my life with your presence, & have no problem lighting up my bedroom with your bright phone screen. Nothing is better than watching you become the young woman you are."
She added: "I am so lucky I get to be your mom. Happy Birthday to my favourite girl in the world. Now lets go binge watch season 3 of Greys. [sic]"
Though Nicole and Joel rarely share photos of their children, the Good Charlotte singer can't help but gush over his family every now and then.
In October 2017 he also shared a photo of Nicole, sister-in-law Sofia Richie, and Harlow – and we can't get over how alike the trio looks!
He appropriately captioned the photo: "Who's who anymore."
SEE THAT PHOTO AND MORE FAMILY PICS HERE: