Simon Cowell's emotional tribute to Nightbirde, the beloved AGT star who touched hearts with her resilience and talent, reflects the profound impact she had on millions.  Her journey, marked by a moving audition and the coveted golden buzzer, captured the world's attention, garnering over 35 million views on YouTube.  Despite her battle with cancer, Nightbirde's spirit and determination to create a lasting impact through her music and charity work continue to inspire.  Let's watch the video to see Simon Cowell's heartfelt tribute unfold.