Baby Harper may have stolen the limelight recently as Karl Stefanovic's adorable new family addition but today is undoubtedly all about his daughter Willow, formerly known as Ava.
The doting dad has taken to Instagram to sing the teen's praises and mark her sweet 16th.
Karl shared a series of photographs starting with a cute throwback jumping on a trampoline with a young Willow, a blurry snap of the teen laughing with now-wife Jasmine and a candid, caught off-guard pic that we all know teens love.
"Happy birthday my love. Sixteen. What a light you are. And what love and happiness shines from you. ❤️ @willowstefanovic," The Today host wrote.
The post was flooded with birthday wishes for the 16-year-old including comments from Jasmine and her sister Jade.
Step-mum Jasmine also shared a touching birthday tribute with a number of photographs from her birthday celebrations, including one very stylish black and white snap of the duo together.
"Happy Sweet 16th beautiful girl 🤍," Jasmine simply captioned the post.
Karl shares Jackson, 22, daughter Willow, 16, and son River, 14, with ex-wife Cass Thorburn.
In May last year, Karl welcomed his second daughter, Harper, with wife Jasmine Yarbrough.
Karl says despite the fact that when he met Jasmine, he had undergone a vasectomy, a procedure he later had reversed, having a child together was always a goal for the couple.
"We discussed it very early on in our relationship and I was very excited about the prospect of having a baby," he told Daily Mail Australia.
Ahead of baby Harper's arrival the popular Channel Nine personality revealed his new daughter will be an expression of the love he has for his wife.
"We [he and Jasmine] do have a very loving relationship and to have a baby as an expression of that love is incredible. It's never an easy thing and I think that kids are a miracle and we just can't wait to meet this little girl. Just to shower her with all the love that we have."