Simon Cowell Reacts To 'Heartbreaking News' Of America's Got Talent Star Nightbirde's Passing

Simon Cowell Honors Nightbirde After Her ‘Heartbreaking’ Passing; She Was ‘Extraordinary’

Nightbirde Mourned by Family, America's Got Talent Crew: "An Unimaginable Loss"

America's Got Talent: Extreme: Nikki Bella hits Golden Buzzer for wheelchair jumper Aaron Wheelz