School students were left stunned after a music star walked in on their lessons.

Brit Awards Critics’ Choice winner Jack Garratt visited his old teachers at St Clement Danes School yesterday.

The 24-year-old toured the music department, looking at the instruments and also dropped in on their lessons.

Excited students started heading towards the school’s music office when they heard the star was at the Chenies Road school.

Ellie Thompson, from St Clement Danes School, said: “There was an unusually high volume of traffic going backwards and forwards past the music office at break once word got around of his visit.

“We were thrilled to be able to welcome him back to St Clement Danes and delighted that, on the back of his many recent accolades and album launch, he is performing to sell-out crowds across the world.

“We hope to see him again soon and wish him continuing success in his music career.”