Numerous songs recorded over the past 30 years underwent quantization, which is the process of fixing all the parts to a fixed beat – even if that's not how it was originally played.
So, a YouTubercalling himself Dr. Bob has posted a video using Van Halen's "Runnin' With the Devil," recorded in 1977, as an example.
He says, "I know this is going to border on blasphemy, but that's the point."
Dr. Bob has also done the same things with songs by Steve Perry and Boston.