We move on to the royal baby and we hear from grandpa, prince charles, what he thinks about the new name and we hear from the taxi driver who drove the middletons to the hospital. Here's abc's lama... See More
We move on to the royal baby and we hear from grandpa, prince charles, what he thinks about the new name and we hear from the taxi driver who drove the middletons to the hospital. Here's abc's lama hasan. Reporter: Just a few hours ago at a charity event, the prince stepping out for the first time since becoming uncle harry, gushing about his nephew, his royal highness, prince george alexander louis of cambridge. His mission as an uncle? To make sure he has a good upbringing. Keep him out of harm's way, and make sure he has fun. Reporter: Harry then gave a helpful description of what he thinks the future monarch looks like. He's about that long and about that wide. It's fantastic to have another addition to the family. I only hope my brother knows how expensive my babysitting charges are. Reporter: The other person we're hearing from for the first time -- tracy mitchell, the london cab driver who picked up kate's parents when they first visited their grandson. And drove right into the world spotlight. I was just gobsmacked. I didn't really know what to say. Reporter: She added the future king's grandparents were the most important passengers she's ever had. At an official event today, the baby's other grandpa, prince charles, said he was hoping they would call him george.
This transcript has been automatically generated and may not be 100% accurate.