I became a fan literally a month after their first show in Argentina in 09. One of my best friends was a big fan. I had heard of them, had also done some research on them years before, but hadn't heard much.
But that month I went down the McFly spiral and well... here we are. They fortunatelly came back to Argentina in 2011 and I was able to see them in all 3 shows they played in Buenos Aires. I was a Pioneer so I got early access and was able to see them front "row" or very close to it all 3 times. Best weekend ever.