It's what parents of toddlers have known for years, now it's been confirmed by law enforcement officials - listening to 'Baby Shark' on repeat is a form of torture.
Detention officers at a jail in Oklahoma forced inmates to listen to the song, in a punishment that's been labelled "inhumane".
The Oklahoman reported an investigation found the former officers, Gregory Cornell Butler Jr, 21, and Christian Charles Miles, 21 made at least four prisoners at the Oklahoma County jail stand for hours with their hand cuffed behind their backs, while the popular tune played on a loop at loud volume.
The officers have now been charged with misdemeanour counts of cruelty to a prisoner and conspiracy over the events which took place in November and December last year.
According to an investigator, Miles and Booth used an attorney visitation room to conduct the punishment, "systematically worked together" to come up with the plan, designed to "teach the inmates a lesson".
"The playing of the music was said to be a joke between Miles and Butler," an investigator wrote in an affidavit filed in the case, continuing writing that "the repetitive tune put undue emotional stress on the inmates who were most likely already suffering from physical stressors."
Millions of parents around the world would no doubt agree.
The officers resigned during an internal investigation, according to the report.
Baby Shark launched on YouTube in November 2015, becoming a viral sensation, nearing six billion views on YouTube – making it the second most-viewed video in the platform's history and resulting in singing plush toys, a heavy metal version, play doh, a musical and even a television series.