How should I start my speech about the end of the world?

In school were doing speeches, my topic is about the end of the world, and I really want an amazing first sentence that will grab my audience. So far all I have is, "This is my speech." Amazing, huh? Anyways some things im including is The Mayans, The Bible (pages that say some info about the end coming), The Antichrist, The economy, Natural Disasters occurring around the world, and Web Bot. Please help on a good starting note :)