Demi Lovato has come out as non-binary, telling the world: "I am so happy now." Non-binary is the definition used when a person feels their gender expression is neither male or female.
There are no official figures for how many non-binary people there are in the UK, as being NB still isn't legally recognised, but LGBTQ charity Stonewall estimates there could be around 600,000 trans and non-binary people in the UK - around 1% of the population.
Binary suggests two opposing identities - for instance, male and female - so non-binary means moving away from the idea that there can only be two available identities, allowing room to explore what other identities there may be.
Read more on mirror.co.uk