Regina wrote in her birthday message to her stepson, "Happy 18th birthday to my adorable big boy. Watching you grow ... Legit.ng captured some of the messages, read them below: ferguson_igwe ...

As always, the “Angel of Mine” singer’s comments section blew up with birthday wishes and reactions ... He deserves it all and more. Happy 18th Birthday, Baby Boy!!” Monica typically ...

Gwen Stefani's Son Apollo Gives Blake Shelton a Huge Hug as She Wishes Him a Happy 10th Birthday ... “My first born baby boy :) cannot believe u are 18 today… i love u!” ...

The former couple both shared messages on Instagram for their son Liam as they celebrated his 18th birthday ... man is no longer little. My baby boy Liam is 18 years old today!!

Rossdale's daughter, Daisy Lowe, whom he shares with fashion designer Pearl Lowe, shared her own birthday wishes to Kingston ... @kingsrossdale_ & happy 18th anniversary of being a super mum ...

The Mexican-American actress wrote a sweet Instagram post for Augustin James Evangelista to commemorate his 18th birthday on ... section soon flooded with birthday messages for Hayek.

People are being asked to send cards to celebrate the 18th birthday of Zak Hall from Cumbria. Zak was born in 2007, and was left severely brain damaged after complications left him without oxygen ...

Gwen Stefani and Gavin Rossdale are celebrating the 18th birthday of their eldest son ... by having his rockstar parents post commemorative messages -- accompanied by some adorable photos ...