Poot Lovato began when Tumblr user cstcrpt uploaded this photo of Demi Lovato.
Cstcrpt — who has since deleted their account — wrote in the caption: "Demi's twin sister. She was locked in a basement her whole life. This picture was taken the first time she went outside. Her name is Poot."
The photo appears to have been taken by a fan at some sort of event or meet-and-greet.
Shortly afterwards, a largely dormant Twitter account adopted the handle @OfficialPoot and started tweeting as Lovato's fictional twin.
A backstory for Poot was also created on self-publishing site Wattpad.
Here is an extract.
Which then led to a now-deleted Wikipedia entry.
The Wikipedia pages for "basement" and "outside" were also momentarily altered in honor of Poot.
Poot quickly began to infiltrate already established memes.
And become part of pop culture.
Twitter solidarity movements have risen up with her, with the hashtags #IStandWithPoot, #FreePoot, and #JusticeForPoot.
Even Facebook users have been touched by the story of Poot.
Support for Poot has become so powerful, it has moved out of the internet and into real life.