Also allows me to do some musical profiling. This identifies them as probably a GenXer or so. Because you would've had to be between about 15 and 25 to like the Spice Girls in 1997, let's say up to 30 y.o. to keep their MP3 ironically and/or nostalgically. And I'm claiming there's no way in hell you would've "discovered" them later, so that's a 15-year age range, birth years bounded 1967-1982, current ages 37-52.
Stevie Wonder and Cat Stevens tend to push it more toward the older end of that range.
AC/DC correlates with that entire cohort, so doesn't provide any additional or contradictory information. Unless we knew whether it was Bon Scott era or Brian Johnson, heh heh.
