THESE primary school pupils were on song as they attended a special performance by Scottish Opera.
Children from Hillhead Primary were visited by the Pop Up Theatre Royal - bring the story of the Hope Street venue to schools around the city.
The 40-minute performance tells the history of the theatre through music, song and drama.
And the show takes place inside a specially adapted truck.
Scottish Opera general director Alex Reedijk said: "Pop Up Theatre Royal is a fantastic, fun-filled show which gives its young audiences the chance to learn more about the rich history of one of Glasgow's most iconic buildings the Theatre Royal, and through it, the wider cultural history of the city over the last 150 years.
"The trailer allows us to bring all that's great about going to the Theatre Royal out into the communities we visit; from the top notch performances to the lush surroundings, which have been brilliantly recreated by the skilled painters, electricians and joiners in our workshop.
"We hope the experience audiences have at Pop Up Theatre Royal will encourage them to come along to the theatre and see a show in action there too."
The Theatre Royal is undergoing a major redevelopment of its public spaces and this event is part of a bigger project celebrating the heritage of the venue.
The tour will see 26 performances of the show in 10 primary schools - Golfhill, Broomhill, Hillhead, St Joseph's, St Charles', Cuthbertson, St Denis, St Stephen's, Balornock and Hutcheson's Grammar - as well as community venues.
The show was written by Martin O'Connor and composed by Karen MacIver, directed by Julie Brown, with visual art by Iain Piercy.
The story is brought to life by singers George Drennan, Marie Claire Breen, Alison Reid and Connor Smith, pianist Leighton Jones and cellist Robin Mason.
Mr Reedijk added: "The transformation of the public spaces at the Theatre Royal will not only mean new lifts, spacious foyers, better bars, more toilets, education rooms and a roof top terrace - but also a permanent display celebrating the heritage of the Theatre Royal itself."