It seems like you’ve described a scene from a talent show, possibly like “America’s Got Talent” or “Britain’s Got Talent,” where a contestant performed a rendition of the song “Never Enough” and received the Golden Buzzer.
The Golden Buzzer is a special privilege given to a judge (in this case, Simon Cowell) that allows them to send a contestant directly to the next round of the competition.
When Simon Cowell was left “dumbfounded,” it likely means he was incredibly impressed and surprised by the contestant’s performance. Such moments are often highlights of these talent shows and can lead to life-changing opportunities for the contestants.
