Teen model with stage 4 Cystic Fibrosis sings 'fight song' and promises to keep fighting Flack's right lung collapsed in February. She has been waiting over 16 months for a double lung transplant ...

Jeremiah Succar, 7, loves Platten's hit "Fight Song" and after a "#RachelMeetJeremiah ... “He used to sing it when he got a lot of headaches, but now he sings it in the morning, before bed ...