Costee, a 31-year-old artist, and Joanna Wallinheimo, a 24-year-old actress, have shared the joyful news of their baby’s birth through a joint Instagram post. The post features a heartwarming image of their newborn's tiny fingers wrapped around an adult hand, capturing the essence of new parenthood. The couple expressed their happiness with the caption, 'He is here and we are happy,' but did not provide further details about the baby.

Joanna Wallinheimo is the daughter of Sinuhe Wallinheimo, a member of the Finnish parliament, making him a grandfather for the first time. This family connection adds a layer of significance to the birth, as it marks a new generation within a prominent political family. The couple had previously announced in September that they were expecting their first child, humorously noting that their cat Lucifer would soon become a big brother.

Costee, also known as Jussi Tiainen, has made a name for himself in the alternative pop music scene and participated in the 2025 Uuden musiikin kilpailu with his song 'Sekasin.' Joanna Wallinheimo gained recognition from her role in the sister series Rantabaari of the popular Finnish show Salatut elämät. This new addition to their family marks a joyous milestone in both the personal and public lives of this young couple in Finland.