Los Angeles, California - April Love Geary gave birth to her and Robin Thicke's third child on Friday!

The Blurred Lines singer announced the exciting news on his Instagram account and he shared a heartwarming picture of himself with his youngest son.

Little Luca Patrick is wrapped in a warm baby blanket, while Thicke holds him tightly in his arms.

The 43-year-old is clearly overwhelmed.

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"Thank you God, and my darling April Love Geary for this blessing," he wrote in his post and he dedicated a few words to his late father, as well as his music producer Andre Harrell:

"I will do my best everyday to teach him what they taught me about Family, Friendship and Love."

His beloved fiancée also took to Instagram to announce the beautiful news and shared a touching picture of herself and her son.

"My Luca Patrick, you are so perfect. Mommy & daddy love you so much," she wrote.

Robin Thicke and April Love Geary also have two daughters, 2-year-old Mia and 1-year-old Lola.

Thicke also has a 10-year-old son, Julian Fuego, from his previous marriage to Paula Patton (45).