It should have been a feel-good story: six young men, plucked from obscurity to become music stars. That’s how Neta Rozenblat, a member of boyband as1one, puts it.

Pop hopefuls do not usually find themselves having to navigate fear, grief and complex political issues before the world even knows their names – but theirs is not a typical story.

As1one are billed as the first-ever Israeli Jewish and Palestinian Arab boyband, put together following a two-year search by US hitmakers…