EVER hear of Burkina Faso? No, me neither until I saw a guy from the west African country carry a Mayo flag onto the One Young World stage.
Well, at closer inspection it wasn't actually a red and green cloth gone array after the All Ireland, there was actually a yellow star in the centre.
For a time last night I felt like I had been transported into a live outside broadcast of Teresa Lowe's 'Where in the World?"
Officially the United Nations acknowledges 194 countries so the opportunity of see people from all but four nations in the entire world together is an astonishing sight.
Ireland was more than represented by Bob Geldof who made the standout speech of the night in the famous FNB stadium - the place where South African history was rewritten during the rugby World Cup in 1995.
It's hard to say whether Geldof or the vuvuzelas (remember them for the soccer World Cup) stole the show.
Giving 7,000 schoolkids trumpets had the expected consequences: an din so great that the 100,000 seater stadium sounded full and an atmosphere that rocked.
On the flip side former UN General-Secretary Kofi Annan found himself in the unprecedented position of having to plead "silence please" as he made his keynote address.
Annan told how the young people must speak up "so that even the political leaders with the hardest hearing can't miss what you say" - just don't use a vuvuzela.
For his part Geldof told a horror story of "mass extinction" unless the next generation acted now.
To summarise his nine minute address in a sentence: 'The world is doomed unless we make the impossible, possible.'
Noisy kids and worrying premonitions aside the summit gets underway properly today with chef Jamie Oliver talking about "the food revolution" and Liverpool legend John Barnes talking about "sport and society".
One Young World founder David Jones teed up the discussions last night, saying: "The world doesn't need another youth conference, it needs action."
An odd statement from someone who is basically the puppeteer behind the largest youth conference in the world - but his view is that there is no point talking unless action is taken.
He described people aged between 18 and 30 as the "most knowledgeable" and "the most powerful generation of young people that has ever existed" due to the digital revolution.
Speaking to some of the 12 Irish delegates last night they are already buying into it.
At the same time they are also getting into the swing of life in Johannesburg.
It's a city where at any moment the sun can be eclipsed by the movement of a tower crane - but Nama exists here too. Albeit that she's a 'cash cow' (see picture) in a restaurant in Mandela Square.