collaborated with sheryl crow, he's written songs for "gray's anatomy," he's open for elton john and this irish musician, foy vance is going to be singing. just remember his name and you'll say, oh, who was that great singer they had on the "today" show, foye vance. >> and the shocking story of one young woman struck by a terrible head pain during a run. little did she know, she was having a stroke, she was only 27 at the time so we'll hear her story. >> so surprising when you hear that from such a young person. we'll also have dr. natalie azar to talk about that. >> would you like words of wisdom on this fine day? >> why not? >> here we go. picture a picture of a little girl and a puppy. now here's the quote, that was right underneath it. "no symphony orchestra ever played music like a two-year-old girl laughing with a puppy." it's by bern williams. >> i love that and it's so true. >> when you hear mila cracking up -- >> but also we have this video with my little niece chase on easter and i said do you want to hear the best smound the whole world and it's to hear a little baby laugh and my niece was like, y