Simon Cowell, Alesha Dixon, David Walliams and Amanda Holden gave their backing to Norfolk-based singer Sam Kelly, who performed a cover of Adele's 'Make You Feel My Love' on Friday (January 20).
Insiders say that Holden was moved to tears by the rendition, while Cowell gushed that the young star had been "brilliant".
"I think you have got something really unique," he told the guitar player. "I really like you Sam, brilliant."
Potentially referring to Kelly's performance, Cowell later wrote on Twitter: "First day of auditions, think we found a star but won't give it away."
New panellist Dixon added after auditions that she had been impressed by the high quality of contestants in the city.
"Manchester was excellent," she declared. "There are already so many acts that I could see in the semi-final, and I really didn't expect to see that in the first city."
> Alesha Dixon: 'Britain's Got Talent debut was mad'
Watch Digital Spy at the Britain's Got Talent launch below: