One of my annoyances is that most male pop singing is at too high a range for normal baritone men without vocal training to sing along. I actually find it easier to sing along to female pop songs (by singing an octave lower) than to male pop songs.
One of the great injustices of music. As a bass voice, both pop music and theater is _dominated_ by tenors (or maybe they're baritones? The point being that it seems no one wants to hear you if you can't belt a Bb4).
On the Song Exploder podcast, Take on Me episode, the artist talks about the producer saying that a male falsetto was a “make this song a hit” button…
If a handsome crooner with a deep voice sings sweet love songs, their fans will consist of hetero women.
If a woman sings in a high voice with a girly-girl image, she will tend to attract men.
A singer or group with great falsetto/whistle register, or female tenor/contralto, ambiguous or hetero lyrics, and androgynous image or radio-only can effectively draw in a broadly mixed-gender audience.
See new wave, synth pop, hair metal, David Bowie, Concrete Blonde, Janis Joplin, Alison Moyet, et. al.
If a performer lands on the far side of the spectrum, the producers will inevitably hire backup dancers and singers to broaden their appeal.