. >> this is 12-year-old talia castellano. she has a youtube channel called taliajoy18.any of her tutorialing are her taking you through a day in her life. she's been battling cancer since the age of 7. she is now 12 years old, about to turn 13 and just found out that she's not only battling one kind of cancer which was a neuro blastoma. >> i also have it in my bone marrow. >> as you can see, she doesn't have hair from going through round after round of chemotherapy. she's undergone surgery, stem cell treatments, radiation. they're considering a bone marrow transplant. >> right now where i'm leaning to is not doing it because i don't want to go through that. >> what's so incredible is she maintains this incredible outlook and does these beautiful makeup tutorials and people have really around the world have fallen in love with talia. we wanted to know more about her and about what's going on in her current journey. "right this minute" we have talia castellano via skype. >> hi. >> i would love to know how you maintain such amazing positivity. >> my mom and i, we always ju