The 56-year-old TV star congratulated the couple, who will reportedly welcome their first child into the world in two months time, and is looking forward to seeing their offspring, reported Us magazine.
"Congrats to Ryan Gosling and Eva Mendes! That's going to be the most beautiful, bilingual, part-superhero, well-dressed, romantic baby ever (sic)," she posted on Twitter.
Though the couple haven't confirmed the pregnancy, they are said to be thrilled, particularly 40-year-old Mendes who has wanted a child for some time.