The 'High School Musial' star announced that she gave birth on March 23.
'Whatever the kid needs for the rest of their life, I'll be there,' the actor vowed.
The little boy is the queen's 10th great grandchild.
The actress' 2-year-old little girl is embracing holistic health with her father.
The 59-year-old actor has 3-year-old twins with his wife, Amal.
The reality TV star and her fiancé took to Instagram to introduce their newborn daughter Ocean to the world.
The couple welcomed baby daughter Daisy Dove in August.
Baby River was born on March 5.
The fashion designer shared a sweet tribute to her daughter on Instagram.
Hayes will turn 1 on Tuesday.
Mahomes and his fiancée, Brittany Matthews, welcomed baby Sterling on Feb. 20.
The couple welcomed a son, Rennie, last month.
The singer opened up about how being a dad has been a very dramatic change of pace for him.
'Her kids are what she's most proud of in her life.'