It is the first child for the Australian model and her Snapchat founder husband.
It's so simple it's almost ridiculous, yet many of us don't use it.
"I'm so serious," quipped Williams.
The list gets rather bizarre.
Hold the judgement, please.
A royal birth is enough to turn the most staid of people into buzzing balls of joy.
"Thrice the worry now," Prince William joked as he left the hospital with his wife and newborn son.
Speculation is rife that the Duke and Duchess of Cambridge are expecting a baby boy, after Prince William dropped a major hint about their third baby's gender.
Reality television star Khloe Kardashian gave birth to her first child on Thursday, according to US media reports.
The babies said "Mama" first.
The crooner and his wife are expecting baby number three.