The Lewisham and Greenwich NHS Trust choir joined McFly to sing a tribute to the nation on ITV’s Britain’s Got Talent.

In-studio and virtual singers from the choir backed-up the boyband pop veterans on their feelgood singalong classic “All About You” in Saturday’s semi-final.

Members lined the back of the stage, along with dozens who couldn't make it in person on a live-screen, all wearing their NHS uniforms.

After their performance, one of the singers onstage Caroline Smith, the Choir’s coordinator and a Paediatric Physiotherapist, said: “It’s a long time since I have been that nervous, but what an amazing experience!

“We’re so grateful to Britain’s Got Talent and to McFly for this opportunity to sing together once again and to show our pride in the work healthcare workers are doing across the country.

"It’s always an honour to represent the NHS, especially at times like these, and we hope it brought some cheer to our lovely and talented colleagues around the country.”

The night couldn’t even be spoilt when co-host Declan Donnelly, in his own words, “hit a nurse in the face with a balloon” in excitement.

Following the performance, McFly joined thousands of social media users in praising the choir, with the band’s official account saying “you guys did an amazing job” and singer Tom Fletcher commenting that “it was an honour singing with you”.

The choir started back in 2012 as part of Gareth Malone's BBC2 show, 'Sing While You Work'.

While they were narrowly beaten in the show’s finale, their success took them from the small screen to the Royal Albert Hall, FA Cup Final, Glastonbury’s Pyramid Stage and more.

In 2015 their Christmas single ‘A Bridge Over You’ beat the likes of Justin Bieber, Adele, Stormzy and One Direction to the historic number one spot.