On Adele’s current tour, the stage is set up in the middle of arena floors, so there is really no dedicated backstage area right behind the stage; she performs entirely surrounded by the audience.
Because of this, transferring the singer to the stage without anyone noticing her wold obviously be a little difficult. Her production team’s solution was probably not as intricate and complex as you might think, either….they roll her in a box.
Adele reportedly sits in the box for several minutes as she is rolled from her dressing room to underneath the stage. A source told The Sun, “Most of her fans are already seated and just presume it’s a piece of kit they are moving, but some have been told by staff at venues that actually it’s their idol and a woman worth £85million sitting in a pretty small box a few feet from them.”
Adele had previously hinted on how she gets to the stage with no backstage tunnel, where she has said, “How I get to this stage makes me so sweaty, I’m drenched. I can’t tell you til the end [of the tour], you’ll laugh when you find out.”