This included a recent show by Swedish pop superstars Roxette, who had a string of chart-topping hits in the 1990s and are back on the road again with a world tour.

The Roxette show was staged at Bergenhus Fortress & Castle (a greenfield site, which is part of a medieval fortress and castle) located in the middle of Bergen’s historic centre.

It was moved from its originally intended site and the capacity increased from 6,500 to 10,000 people - which was immediately - again - sold out.

The roof features seven tower supports and a top trussing grid made up of RTT and FTT trussing.

The structure is 20m wide x 16m deep with 10.5m of headroom above the stage.

It has a sloping asymmetric roof and is constructed from a combination of MILOS standard and custom products - including M950 and QTKT truss, M520 folding truss and MT2 Towers.

The system is also capable of taking a weight loading of 16tonnes to accommodate lighting, video and sound production for large shows and events.