The military wags were the star attraction at a celebration of the armed forces in Stirling on Saturday.
The choir, who topped the charts with Gary Barlow and their hit Sing, performed for hundreds of well-wishers at King’s Park.
The city’s Armed Forces Day events also saw a parade of military personell, a demonstration by the Royal Marines, a cadets drill competition and a police dogs display.
Stirling Provost Mike Robbins said: “The colour, fun, music and spectacle of Armed Forces Day is one of the highlights of the Stirling diary.
“Our event is now recognised by the army as the principal one of its kind in Scotland, which is a proud achievement.
“I’m sure local people will have had a terrific day out and welcomed the chance to show appreciation for everything our armed forces do for our country and for the Stirling area.”
Gallery: Armed Forces Day in Stirling
Armed Forces Day is a Ministry of Defence initiative to honour and celebrate the work of the armed forces and those who support them.
It aims to raise awareness about the contributions of the Royal Navy, British Army and Royal Air Force, reservists, veterans, cadets and the wider armed forces community, including service families.
Lieutenant Colonel Paul Holder, commanding officer of the Scottish Transport Regiment (Volunteers) army unit, organised the event.
He said: “The people of the city and district of Stirling are great supporters of the armed forces and it was great to see so many of them at the show today, which starts a week of armed forces events in Scotland.”
The day ended with a great military musical marching tradition Beating Retreat.