Kate Middleton and Prince William with son

He's third in line to throne and he's the most famous baby in the world -- even more famous than Beyonce's daughter, Blue Ivy, or Kim Kardashian's infant daughter, North West. Proud parents kate Middleton and Prince Williams wasted no time showing off their bundle of joy as they left St. Mary's Hospital Tuesday evening. Middleton gave birth to the boy, weighing 8 pounds, 6 ounces, at 9:24 p.m. EST Monday evening.

"It's very emotional and it's such a special time. I think any parent probably knows what this feeling is like," Middleton said as she cradled her newborn in her arms.

Unlike narcissistic American celebrities, British royalty don't sell photos of their babies to the tabloids.

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