When New Yorker Jack Guthrie went skiing with his family in March 2016 in Vermont, the then 11-year-old got in a serious accident after slipping on a patch of ice and had to be airlifted to a local hospital.

Jack suffered a severe traumatic brain injury that affected his ability to breathe, speak, and move. He went into cardiac arrest on his helicopter ride to the hospital.

A month later, he was transferred to NYU Langone’s Rusk Rehabilitation. There, his care team gave him intensive around the clock inpatient care. Eventually Jack transitioned to outpatient services, including physical and aquatic therapy.

Jack’s physician, Joan Gold, MD, clinical professor of rehabilitation medicine, worked with a team of inpatient and outpatient physical therapists, occupational therapists, speech–language pathologists, nurses, and social workers to help Jack as he recovered. A major part of his care at Rusk Rehabilitation involved music therapy—during which he wrote a song, with his music therapist Elena Savvides, about his experience. Now, he’s set to perform in a talent show at Radio City Music Hall.

“Nobody can predict when there is a brain injury how far we are going to get,’’ physical therapist Lauren Chowansky, DPT, tells the New York Post. “Everyone was amazed.”

Read more from the New York Post.