♪ ♪ under her spell i can't break ♪ ♪ i just can't stop ♪ >> musician ne-yo, "american idol" david archuletaan nick cannon -- they're just some of the celebs who support the children's miracle network hospitals. but 15-year-old alena galan and millions of kids like her are the real stars of the charity. >> want to open it? >> alena gets a special present delivered to her house once a week. it's not clothes, jewelry, or games. alena's gift is medicine that helps keep her alive. >> so, i have a rare genetic disorder called maroteaux-lamy, or also known as mps 6, and i take an enzyme replacement once a week to help me live and grow. it's my enzyme. >> she has to go through a long procedure called an infusion that pumps the medicine into her veins. >> super! it's four hours and ten minutes on a pump. oh, she's beyond brave. she's very brave. and it's because, you know, the importance of getting her medicine. so, she knows she has to do it. >> health professionals like pearl are able to help kids like alena deal with their medical condition -- in part, thanks to donations to children's miracle ne