Beat It Michael Jackson
Which stars have been sharing their family snaps on social media to celebrate the special day?
The former England captain took to Instagram to share his appreciation for wife Victoria Beckham by posting a snap of their four children, Brooklyn, 17, Romeo, 13, Cruz, 11 and Harper, 4.
The former Olympic swimmer shared a photo of her eight-month-old daughter Summer with an adorable message about motherhood.
The former TOWIE star showed off her abundance of gifts from her boyfriend Paul Knightley and their two-month-old baby Paul Jr.
Geri Horner, 43, shared a snippet of a cute video her computer whizz nine-year-old daughter Bluebell had made for her. Cute!
Meanwhile, mum-of-three Holly Willoughby, 35, showed off the lovely and thoughtful gifts she had received, including mug branded with "mum".
Giovanna and Tom Fletcher gave fans the first glimpse of their newborn son Buddy in a cute family snap with their two-year-old son Buzz.
The Heart Club Classics presenter paid tribute to his mother and late grandmother Nana Pat in a touching Instagram post.