I've seen this brought up before somewhere on these forums. Apparently after he died, of course, people started claiming he was able to see the future. I have to question that though, as Michael Jackson wasn't able to see that his plastic surgery would make him look like Lord Voldemort, he wasn't able to see the flame coming that caught his hair on fire, he wasn't able to see the lawsuits for "Neverland" coming (or perhaps he thought it was worth it), nor was he able to see his own imminent demise. We all know Michael Jackson's life choices weren't the greatest, and I hope we were all able to see that he wasn't the most intelligent being out there.
Jay Sean doesn't believe anything. He said that he made the song so people would chill out. Notice the line, "It's not the end of the world"