Robin Roberts Gets Laughs on 'Letterman'

The "GMA" co-host paid a visit to "Late Night" to discuss her new book, "Everybody's Got Something."
1:17 | 04/23/14

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Transcript for Robin Roberts Gets Laughs on 'Letterman'
As you may have heard, robin has a great new book. It's called "Everybody's got something." And last night, Letterman got robin. She stayed up way past her bedtime for a special appearance. When I got outside of, oh, I'm still going to be here, it is fascinating what they were able to do is completely deplete our immune system to the brink. And then, my dear sister, sally, she had healthy stem cells that were compatible. And she was a perfect match. They insert her stem cells into me. You're sitting here, not just with me, but with my sister, as well. We tried to get your sister. But she's on Fallon. Nothing works here. A joke at the end. But Dave was pretty serious about getting the medical stuff. He is really into that because he's had his own health concerns. It was a fascinating conversation. It took me off guard a little Lovely, everyone around there. It was just -- it was different. It was different. And I really enjoyed it. And I was up way past my bedtime. He's one of the good guys. He really is.

This transcript has been automatically generated and may not be 100% accurate.

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