9. Elvis Presley

This has to be one of most enduring and well-known conspiracy theories in U.S. history. Since his death in 1977, it has been rumored that Presley did not die at all, and for reasons that are not often provided, he went into hiding and is alive to this day. “Elvis sightings,” have worked their way into popular culture, and are often used jokingly or in a sarcastic way. Frankly, we have no difficulty believing that Elvis Presley did die in 1977, since the way he died is certainly not unusual for a celebrity, and let’s face it, we all have to go sooner or later. We’ll make an exception and pass judgment on this one: Elvis is dead.