One of the things I've noticed in J-Pop, notably within the anison genre, is that a number of the songs seem to hearken back to a sound 5 or even 10 years earlier than their recording date. I'm not sure if it's the nostalgia bug that has taken a bite but I have heard songs that were made in the early 2000s sound as if they had been created in the early 1990s.
EPO's "Everybody Knows" is one of those non-anison songs that rather falls into this time-slip category. This was her 21st single from July 1989 but it sounds like an American fusion tune from about a decade before which hit me as being a bit of a switch when I consider her to be one of the City Pop princesses. It was composed by Danny Schogger and Linda Taylor with EPO behind the lyrics.
What was also interesting was the music video which had the singer herself changing her image into that of a young woman hitting the more rambunctious areas of town, all gussied up in leather and makeup so that she was going more for a rock appearance. The video has been taken down but you can check out EPO with that long hair above for the album cover of "Super Natural", her 12th album which came out at the same time as "Everybody Knows".