Did you know Avril Lavigne was replaced by a lookalike named Melissa in 2003?
But the highlight of this theory, probably, is that people are now calling Avril Lavigne as Melissa and telling her to come clean.
Over the weekend a fan named "givincyass" reignited the rumours in a Twitter thread that has since been liked and retweeted almost a quarter of a million times.
The story claims that after the release of her acclaimed 2002 debut album Let Go, Avril couldn't handle the pressures of fame and began using a body double called Melissa.
Hilariously, the reason the long-in-the-tooth hoax appears to have resurfaced has to do with a 2011 blog post from Brazil, which was intended as a cautionary tale on how to make a fake conspiracy theory appear to be true, but wound up spreading throughout the Internet like wildfire.
After uploading a customized video comparing Lavigne's music from the early days of her career with a track released in 2014, the user delved into stating a brief biography of the singer, followed by an explanation of the conspiracy theory.
Conspiracy theories relating to celebrity deaths are nothing new.
However, while working on her second album, it's claimed that Avril fell into a depression and was later found dead at her home. Others cite a promo picture of the singer with the word Melissa written on her hand.
Some people believe the Canadian singer died in 2003 and an imposter is now living out her life for her. It's an album full of subliminal messages apparently left by the "New Avril".
Over the weekend, the world learned with great regret that pop-punk icon Avril Lavigne had passed away.
Yesterday, the blonde star posted a sweet snap of her with her mom for Mother's Day.
One user pointed out: "Avril Lavigne would never promote a Slim Secret bar. The jig is up Melissa" which garnered more than 15,000 retweets.
The blog was created to "demonstrate how easy it is to launch a great online conspiracy theory", according to BuzzFeed journalist Ryan Broderick, whose blog reference in 2015 accidentally revived rumors.
"The internet has been the ideal medium for the distribution of false information: very quickly a stupid - but often highly entertaining - story can be effortlessly distributed far and wide".