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Hayden Panettiere is a new mommy! The "Nashville" star welcomed her first child with fiancé Wladimir Klitschko on December 9th, PEOPLE reports -- according to a rep for the star.

The new parents tell PEOPLE, "We are over the moon and madly in love!"

The couple's new daughter Kaya Evdokia Klitschko came into the world at 7 lbs., 14. oz, and measuring 20 inches! 

Wladimir shared his excitement on Twitter in his native language, writing:

Congratulations to the new parents!

Photos: Getty Images