The newborn is the second child for the "Blurred Lines" singer.
The father-son duo spent some quality time together.
The 6-year-old's got a bright future ahead of her, no matter what she decides to do!
The 32-year-old model is expecting a baby boy in June.
The 32-year-old reality star will continue her jetsetting lifestyle.
The singer's father revealed the news with a sweet pic posted to Instagram on Wednesday.
The couple are already parents to 2-year-old daughter Poppy.
The 20-year-old reality star welcomed her daughter on Feb. 1.
The 39-year-old actress gave birth to son Joshua Jr. nearly 14 months ago.
The couple shared the first photo of Sienna on Thursday.
The 32-year-old model didn't decide on a name for Luna until three days after she was born!
The mother-daughter duo spent some quality time courtside.
The 36-year-old actress is making it work!
ET exclusively sat down with the couple at their Los Angeles home.
