Emma Nuule, 38, wowed the judges and audience with her operatic performance.

Emma Nuule is an operatic singer from Norwich (Image: YouTube)

Mrs Nuule works as a special educational needs support teacher but regularly performs around Norwich, including busking on the street.

Emma Nuule performing at the Assembly Rooms in Norwich (Image: Emma Nuule)

The soprano singer performed a rendition of Nessun Dorma – an aria from Giacomo Puccini’s opera Turandot which was popularised by Luciano Pavarotti – for judges Simon Cowell, Alesha Dixon, Amanda Holden and new permanent judge KSI.

She sang a rendition of Nessun Dorma (Image: YouTube)

In the past, Mrs Nuule has performed at events such as National Film Awards, the British Restaurant Awards and the Golden Lion Awards.

When asked about her motivation to audition Mrs Nuule said: “I really wanted to be on a big stage and wanted people to see me perform on a global level.”

Mrs Nuule said: ” I was so nervous but when I went on, it was the best feeling.

“People in the audience were standing up and cheering.

The crowd gave her a standing ovation (Image: YouTube)

“It was so emotional to get such a powerful response from people.”

She added how incredible the feedback from the judges felt.

Simon Cowell, who has been a judge on the show for almost 20 years said: “Normally with that song, I prefer guys when they sing it, but I have to say you did a really really good job.”

The judges loved her performance (Image: YouTube)

Musician and YouTuber KSI gave her high praise saying: “I felt it down my spine, it was so good.”

She was complimented by hosts Ant and Dec (Image: YouTube)

Hosts Ant and Dec also joined in calling her “special” and complimenting her singing.

Mrs Nuule gained all four ‘yeses’ from the judges, meaning she will go through to the next round of the talent show.

She said: “It went incredibly and I was very much in shock and overwhelmed.”

Her audition featured in Britain’s Got Talent: Unseen, which is available on ITVX and was shown on ITV2 on Sunday evening.