this morning, megastar, jessica simpson joins us live. As "gma's" very first, very special guest host. I'm getting ready. The singer, actress, fashion mogul and new mom has been studying hard. And is... See More
this morning, megastar, jessica simpson joins us live. As "gma's" very first, very special guest host. I'm getting ready. The singer, actress, fashion mogul and new mom has been studying hard. And is now about to take on the world of morning television. Don't forget the coffee. She's here. She's excited. And she's ready to tackle her "gma" guest hosting duties. What a great crowd out there in times square. So excited for jessica simpson, joining team robin this morning, as she starts her medical treatment. It's great to have you here. Thank you. It's so great to be here. It's an honor to be here for robin. We're glad to have you here for robin. Everything's okay? It's chaos. It's a lot of information really early. We got a glimpse of you backstage. You were cramming this morning. I was. I was studying. You know? I have big shoes to fill today. Let's look at your time backstage. No eggs near josh. I'll have to call george on that one. Hello, george. George, what's this with the eggs? Absolutely true. We've been talking about it for the last ten minutes. I didn't know he had problems with eggs. It's a hard-boiled egg. Because it smells like gas. And also, no french roast coffee around josh. I'm with you on that, too. It's very difficult to work with. What else? No eggs for me on the morning show. Did you get inside scoop on anybody else? No. I wikipediaed, you were a diver. Yes. There will be no demonstrations this hour. Even for robin. Not happening. Okay. You feel good about this? I do. Are you ready for your first tease? I'm ready for my first tease because two of our favorite men are here. Richard gere and "project We're also going to be
This transcript has been automatically generated and may not be 100% accurate.