I don't QUITE understand this, but the SIMS have been around forever and have their very own language.
It seems like Simlish is a newer trend on Tik Tok as I've seen some other videos getting the same treatment.
Now, you can enjoy the Simlish remix the Glass Animals hit song "Heatwaves".
I can't understand one word but this will absolutely put a smile on your face!
More HERE and below!