up to $1 million. We're going to show how those donations are starting to make special wishes coming true. Starting with one little girl's dream, to meet one of the biggest pop stars on the planet,... See More
up to $1 million. We're going to show how those donations are starting to make special wishes coming true. Starting with one little girl's dream, to meet one of the biggest pop stars on the planet, salena gomez. To an unknowing eye, frailly gilmore looks like a typical girl. She has so many good qualities. So warm, so caring. He is the one friend that will give the hug when the other friends are being mean. Reporter: She's the catcher on her softball team. Loves hanging out with her friends. And playing with her guinea pig, toby. She's been totally normal since birth until last year. She had no issues. We had never had her in the hospital, ever. Reporter: But last february, after complaining of headaches and stomachaches, fraily's family brought her to the doctor. And they found a tumor in her brain. Fortunately, they were able to remove it entirely. She's amazing. She's like a little rock. And that's what kept us all together. Reporter: Fraily is part of the make-a-wish program. And her wish? I wish to meet salena gomez because she's awesome. Reporter: She thinks she and her family came to new york to talk to "gma" about make-a-wish and have ice cream at the serendipity restaurant. What was it like? Was it scary? What was it like? It wasn't scary. It was just good to get done with it. Reporter: Yeah. From the moment this all started, she's just been fearless. Have you had a frozen chocolate yet here? No. Reporter: Oh, they're so good. We made some small talk while we waiting for our desserts to arrive. What do you do with a guinea pig? I never got to have one. They don't do much. He just sits on my lap. Reporter: But who was waiting downstairs was a much bigger surprise. What did you say your wish was? To meet selena gomez? Reporter: Who? Selena gomez. Reporter: What if I said i could make t wish come true, right now? Hi. Fraily. Nice to meet you, fraily. Have you been having fun? Yeah. Thank you for letting me come meet you. Oh, my goodness. Reporter: Guess who has arrived. This is for everyone? This is for us? Reporter: What's it like for you, to know, just by showing up, and smiling, and saying hello, you can make such a big difference in somebody's life? It's probably one of my favorite things that I get to do for my job. I'm selena. Makes me happy she's just coming out. I feel like I'm not doing enough. Such a cutie. And so deserving. And thanks to selena for that.It's time to look at how many letters have been collected. Drumroll. Okay. Thanks for the drumroll. 345,709. And please, remember, won't you? Keep dropping the letters to santa in the macy's mailboxes and help more wishes come true.
This transcript has been automatically generated and may not be 100% accurate.