The "Paul McCartney is dead" theory has been around since the mid-60s. Although many believe it to be a ridiculous hoax concocted by fanatic Beatles fans with nothing else to do, there are certain key elements to the rumor that just can't be ignored.
Sure, we all know it sounds stupid. How likely is it that Paul McCartney died in a car crash only to be replaced by a lookalike? The chances are low, but anything is possible in the wonderful world of music. All you need to do is look a little closer, conspiracy theories don't just appear out of thin air and they always have a little element of truth.
The Beatles back catalog is chock block full of hints and signals that the legendary bass player popped his clogs. Plus, it has been suggested that The Beatles played on the ridiculous notion that Macca had died, egging on the rumor and gaining record sales as a result.
We all have our own opinions when it comes to the supposed death of Paul McCartney. Even if he did die his replacement still wrote "Hey Jude" so it wasn't all bad.