AN ARMY of skilled workers has moved into Huddersfield's McAlpine Stadium.
And their task is to turn a sporting arena into a giant concert venue - in time for a pop spectacular.
Up to 300 people are working behind the scenes to ensure Saturday's top-flight gig, headlined by boyband superstars Blue, goes ahead in style.
And event producer Mark Tasker, overseeing the huge operation, said: "It's going to be a great show - with some surprises."
Mark and his crew are no strangers to work on huge concerts. Their track record includes the Party In The Park in Leeds, which attracted 765,000 people last year, and a host of stadium events.
And he was mightily impressed with the McAlpine, which, over the past 10 years, has played host to rock greats like REM, The Eagles and Bon Jovi.
"The stadium is a superb venue and I could not get over how big it is. Hopefully the show we are going to put on on Saturday will show the stadium at its best and show people from across the country that Huddersfield really knows how to do a good job."
The huge stage is already in place in front of the John Smith's Stand having been transported in a fleet of lorries from Stockton-on-Tees.
It was used at the weekend in a gig which featured Girls Aloud - also on the Huddersfield bill - Will Young and Busted.
Technicians are now rigging up the giant lights and screen gantries with the equipment itself due to arrive tomorrow. The final piece in the offstage jigsaw will be completed on Saturday morning with the arrival of the mixing units, to ensure perfect sound from all the acts.
Mark said: "We have worked with Blue a number of times and they are a great bunch of guys, really friendly but very professional.
"We always have a joke with them because unlike some bands, they insist on singing live, which adds to the effects. I ask them why live rather than miming and the answer is 'Cos we can!.
"Everyone involved in the show is really looking forward to it."