With just a few days to the première of ABBA Voyage, its Instagram channel released this funny video of Benny and Björn posing as "construction workers" back-stage and wearing high-vis jackets and hard hats to the sound of Voulez-Vous.

Benny appeared particularly mischievous as he went round messing up what work Björn had just done: 

• Björn polished a drinks pump so Benny smears it with fingerprints
• Björn carries a plank of wood away from a pile and Benny puts it back
• Björn pushes a bin to the left and Benny pulls it back to the right
• Björn displays some T-shirts in the merchandise area and Benny messes them up
• Björn picks up a shovel and walks away with it and Benny puts it back
• Björn studis an architectural drawing and Benny then scruches it into a ball and throws it

Finally, there's a Disclaimer saying that, "No actual members of ABBA were involved in the physical construction of the ABBA Arena. This work was all undertaken by qualified professionals."