For Kira Iaconetti, performing has always been her passion. But her dreams were threatened when she started experiencing what she called "glitches” or seizures. Doctors found a calcified tumor in her brain. During surgery, Seattle Children’s Hospital surgeons asked the 19-year-old to sing so they could better pinpoint the problem, and they were able to perform a successful procedure. Iaconetti, her parents and Dr. Jason Hauptman talk with TODAY about the incredible medical achievement.