AGT's Simon Cowell Praises Cancer-Stricken Singer with '2 Percent Chance of Survival'
AGT's Simon Cowell Praises Cancer-Stricken Singer with '2 Percent Chance of Survival'

"I was absolutely mesmerized.

... She's an amazing person with an incredible talent and she's truly an inspiration," Simon Cowell tells PEOPLE about his Golden Buzzer-winning act Nightbirde