4-year-old girl fighting for her life shares song to inspire everyone

Leah, born with a rare blood disease and overcoming two bone marrow transplants, sings "Overcomer" to millions of listeners.
1:12 | 02/09/17

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Transcript for 4-year-old girl fighting for her life shares song to inspire everyone
Finally tonight here, America strong. The little girl and her fighting spirit already seen by millions. Reporter: This is how the video starts. Her shoulders moving. Little Leah. ??? lip syncing to start. She's just 4 years old. Born with a rare blood disease -- a thumbs up. After overcoming two bone marrow transplants. Her mother by her side there. And on the video, mom encouraging her little girl. Let me hear it. ??? Reporter: "You're an overcomer" the song goes. And Leah singing nearly every word. After spending 326 days away from her family and in the hospital, music has helped Leah get through it. She knows every word. ??? You're going to hear me roar ??? proving to the millions already seeing her, she's an overcomer. We are rooting for little We breaking news on the president's travel ban. This is WCVB newscenter 5 at 7:00. We are following breaking news on a major setback for the

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