Melissa Joan Hart and her husband Mark Wilkerson have welcomed her third son, Tucker, to the world.
Speaking to People, the happy couple said: ''Mom and Dad are elated and can't wait to introduce him to his brothers.''
Melissa also took to her Twitter page to share the news with her 240,000 followers, writing: “Baby boy Tucker has finally arrived! We waited all year to meet this lil man &we could not be more excited & relieved that he is in our arms!
She later wrote “Welcome to the world Tucker!!!” with an image of the title card for My Three Sons.
Melissa announced her pregnancy in April but she and her musician husband decided against finding out the sex of baby.
She said earlier this year: ''We don't want to know. We found out both other times, but this one we want [it to be] a surprise.''