FOR the second year in a row David Cameron took a leaf out of the Bill Clinton playbook and walked off stage to Fleetwood Mac's Don't Stop.
The Conservative leader's smile was so wide it would have been but a small jump to imagine him punching the air as he went.
And you could see in his eyes that he believed that in Labour HQ at that moment they were also punching something.
The Clinton influence appeared to extend to the theme behind Mr Cameron's speech.
You could almost hear the aides in the background screaming an updated version of the Clinton campaign mantra.
Instead of "it's the economy, stupid" ,as the area to concentrate on, it was "it's the trust, stupid".
And, in sticking to that, the Prime Minister delivered an electric moment in the hall.
The Conservatives know that one of the main areas where Labour are more trusted is the NHS.
So David Cameron tackled that issue head on.
And in doing so he also rebranded Labour as the nasty party.
The party who could possibly accuse a father who had lost a child of wanting to prevent other parents from receiving world class care in similar conditions.
There was shaking anger in his voice and tears in his eyes as he railed: "How dare they?"
It was an astonishing moment of real emotion, heightened by glances between the Prime Minister and his wife Sam, who also was welling up.
And whereas Ed Miliband mentioned in his speech random members of the public - most famously "Gareth" - none of whom would commit to voting Labour, Mr Cameron had his own cast of characters.
Nancy and Florence have yet to declare their apolitical allegiances.
But given that their father is the leader of the Conservative party it is not that hard to predict who they might support when they finally turn 18.
Mr Cameron's speech was not word perfect, however.
There was an awkward moment when he appeared to tell teenagers that he resented them instead of represented them. But many, not least other parents, may be somewhat sympathetic to the Prime Minister's original sentiment.
And he appeared to be slightly confused about the geography of the UK, despite his love for "our United Kingdom".
He said that he had a message, one of reassurance for the people of Northern Ireland.
It was that he would push through "English votes for English laws".
They speak of little else on the streets of Ballycastle and Newtownards, you know.
To make matters worse he made the same pledge to the people of Wales.
Sighs of relief all round in Swansea, I'm sure.
However, he took on Nigel Farage at his own game - calling a spade a spade with a dash of saucy British seaside humour.
His warning to those flirting with the Eurosceptics that they could "go to bed with Nigel Farage on May 7 and wake up with Ed Miliband the next day", was a line worthy of the robald Ukip leader himself.
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