For reasons that are best chalked up to ¯\_(ツ)_/¯ conspiracy theorists across the internet think Avril Lavigne died and was replaced by a clone named Melissa. It's a thing. Just go with it.
But even more amusing than the conspiracy theory itself is the trolls, who swarmed Lavigne's Twitter account when she made the innocent mistake of posting a photo of herself working on new music.
At which point, the internet turned into the best and weirdest version of itself.