Everyone knows that Simon Cowell can be a bit of a jerk when it comes to contestants on Britain's Got Talent. Usually, though, he doesn't direct his nastiness towards younger performers.

But Shaheen Jafargholi found out the hard way that Cowell doesn't let age stop him from being a critic.

Shaheen took to the Britain's Got Talent stage in 2009 and started singing the song Valerie, as made famous by Amy Winehouse. The crowd seemed to love it, but Simon stopped him pretty quickly.

"You've got this really wrong," says Simon. The crowd and Shaheen are both equally stunned, wondering what was going to happen next.

Simon showed a tiny bit of compassion and asked if there was another song he could sing. Shaheen suggested Who's Lovin' You by Michael Jackson, and Simon obliges.

Within 4 seconds of starting the new song, everyone in the audience is stunned. You have to see this incredible audition!

Shaheen's performance was so incredible, he sky-rocketed to fame. The young singer was even asked to sing at Michael Jackson's funeral as tribute to the late-singer.

Since the audition in 2009, Shaheen has released two albums and has appeared on multiple British television shows. He currently has a regular role on the soap opera, EastEnders.