Simon Cowell is one of the most notoriously difficult to please judges on reality competition shows. That’s why it came as a huge surprise when this singer blew him away on “America’s Got Talent: The Champions.”

Christina Ramos became hugely popular in Europe after she won “Spain’s Got Talent,” but she had to start from scratch when she appeared on “America’s Got Talent: The Champions” this past week. She took a huge risk by performing the Queen song “Bohemian Rhapsody,” as it is a hard song to sing, but it paid off in a huge way!

As soon as Christina took the stage, it was obvious that Simon was a big fan of her looks. Right when she opened her mouth, however, Simon became an even bigger fan of her voice!

Instead of trying to imitate the one of a kind Queen frontman Freddie Mercury, Christina put her own spin on the song. She immediately showed American audiences why exactly she won “Spain’s Got Talent!”

After she was done, the judges were absolutely blown away by her talent.

“It was spectacular, your voice is off the charts,” Simon said. “This was unbelievable. I mean, really, really unbelievable.”

Video of her performance has quickly gone viral, being viewed nearly three million times!

“Brilliant! Spain is very well known for the amazingly amount of talent; this is no exception; this is one of the most powerful performances of all time; Freddie Mercury would be pleased with this Bohemian Rhapsody rendition.,” one social media user commented, with another adding, “I remember seeing her first audition in Spain, and it blew me away. So awesome seeing her here on AGT! Ain’t y’all heard of a rock opera before? ROCK ON, Cristina!”

Check out her performance for yourself below!