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There had been criticism during some of his previous shows that he seemed disengaged and almost sulky as he ran through his repertoire of hits.
But there was none of that petulance for his Dublin gig as he chatted amiably to the crowd about his previous struggles and his love for his fans.
"This is one of my favourite places to be in the whole wide world. Maybe it was the impromptu basketball game in Bushy Park the previous day that has warmed him up but this is the grown-up Bieber, whose 2015 album 'Purpose' gave him a renewed credibility - and restored his fans' faith.
Although relying heavily on pyrotechnics and an impressive light installation, he proved he could still work the massive stage like a pro and appeared relaxed and smiling throughout.
The description of the assault left nothing to the imagination: the student was “was told to take off his coat and trousers, and even his shirt was pulled up by Fr Kearney.
We know, somehow, that all this talk on TV does not remotely approximate the banter of the pub or the acid dissections at the book club.
The squawking heads are invariably ironed flat by the time they hit the air and the content is jolly but seldom witty.
The explosion of social media has shown that there is clearly a great appetite for wit, banter and iconoclastic opinions and, in an era of falling media revenues, talk television, with its relatively low overheads, is an attractive proposition for bean counters.
So, why does it seem almost impossible to get it right?It could be the formats: current affairs seems too stilted and controlled, game shows are too unrelentingly jocular, chat shows themselves seem fake and smarmy - unreconstructed relics of a 1950s idea of light entertainment.