You may have previously thought that My Little Pony was just an '80s children's cartoon, primarily aimed at young girls. You couldn't be more wrong.

We thought that the Hasbro toy and TV franchise, which was a worldwide smash 30 years ago, had lost its sparkle in recent years. We couldn't be more wrong.

A new National Geographic documentary, Outsiders with Darren McMullen, will prove that the world of My Little Pony is currently booming thanks to hugely popular fan conventions. The twist? These events are not attended by young girls. These fans are largely adult men.