Says HuffPo UK's blurb,
Yes, if you want to imbue Cyndi Lauper’s 1983 hit 'Girls Just Want To Have Fun' with a deep sense of sadness and irony, simply shift it from its original major key to a minor one.
It's the work of the very talented young Chase Holfelder, who's producing an ongoing series in which he takes major songs and transposes them to minor. ...
Agreed. Here, by way of comparison, is the 1983 original by Cyndi Lauper. Video on CyndiLauperVEVO channel:
I don't know if I ever noticed it before, but there's no lack of irony there, either.
Bonus track (w/ dulcimer, no less): YouTube heading: Cyndi Lauper - Time After Time (Live on Caroline Rhea show in 2003). The dulcimer, if I had to guess, is probably in some kind of alternative tuning, but the melody is basically Ionian: