In an adorable carousel full of photos of the newborn, the new mom wrote, "Our little ray of sunshine is finally here ... and 9 oz. Never miss a story — sign up for PEOPLE's free daily ...

The supermodel, who is currently pregnant with her third baby, shares Vivian and son Benjamin with ex Tom Brady Gisele Bündchen is celebrating her little ... birthday my ray of sunshine ...

Alan Arkin won an Oscar for 2006's 'Little Miss Sunshine' and recently starred with Michael Douglas in 'The Kominsky Method' Elizabeth Leonard is Managing Executive Editor and West Coast Bureau ...