The current Eurovision rules stipulate that an act must comprise not more than 6 performers onstage; they must perform all vocals live to an instrumental backing (so all instruments, I'm afraid to say, are mimed). This means that all lead and backing vocals must be performed from somewhere on stage.
So, often you're left wondering, where are the backing vocals coming from? If they're not made part of the show, with an unmic'd guitar put in their hand, they're sometimes dressed in black and carefully positioned at the side of the stage to try to appear as invisible as possible.
In tomorrow's semi final, try to play along and spot the missing boppers. I think it's getting harder, with the year-on-year increasing spectacle of Eurovision, which is a trend I don't like. I find it quite dishonest, especially in some songs where they do most of the singing.
Could we start a campaign, "keep euro backing singers in the spotlight"? I think they're inspirational role models who are an integral part of the performance, and it's time to come out of the shadows (aw, I'll just save it for the press release)