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.