There is a spider that hunts other spider species and uses chirps to identify its own species so they don't attack their own kind. A sort of spider shibboleth.
Since there aren't any spider scientists present, I'll take a stab at it:
This is probably some kind of bullshit oversimplification. There was probably like one study by some professor who loves LSD and spiders at a small rural college in New Zealand who published a paper in Spider Science Journal. And it's not singing so much as some very complex and scientific spider stuff that I won't bore you with.
Hopefully I'm just cynical and wrong and there's a little spider Pavarotti out there.
That pretty much hits the nail on the head. Most of this X does “human like™️” stuff Y is anthropomorphism par excellence. Usually some form of instinctual behaviour or even simple results of basic physiological processes are compared to stuff that humans do as a high level cognitive process (singing, talking, etc.) so that it generates clicks and draws attention.
This paints a completely wrong picture of animal (or even plant) behaviour, spreads misinformation and overshadows the actually interesting scientific discoveries.