Knox shared the news on her Instagram on Friday, as well as noted this would be the only photo she shared of her daughter.
The couple also share 1-year-old daughter Naomi.
The couple welcomed a "healthy and adorable" baby girl, that they named, Cora Georgia.
Rousey took to Instagram Monday to share that she and Browne welcomed a baby girl, La’akea.
The 'CBS Mornings' co-host reacted to her family's latest arrival on Monday's show.
The couple also share 2-year-old daughter Kinsey.
The couple is also parents to 3-year-old son, Ennis.
Baby girl Rosaline has arrived!
The singer and the soccer star are parents!
The country singer announced the news of their growing family in March.
The proud dad got a tattoo of his daughter's name following her arrival!
Scarlett Johansson and Colin Jost have welcomed their first child together!
The 'Outlander' star had not previously announced she was pregnant.
The 36-year-old reality star shared photos of her newborn son as well as his name.
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