I saw this show when it was still playing in NYC. I took my Dad. So it was one 20 something woman with one older man, an older gay couple, and at least 50 old ladies, who ate it up.

I've been living in this show for the last year. It starts out as "Sound of Music", moves to Don Giovani and ends as The Exorcist. Repeat monthly.

Just this last week my husband was Scenic Charge for this play at the Ogunquit Playhouse, the Equity theater in Southern Maine. I was hired on to help with some faux finishes and got to spend most of a 14-hour day listening to a rehearsal of this franchise.
It's all re-worked pop tunes, like these lyrics to the old Irving Berlin "Heat Wave":

I'm having a hot flash
A tropical hot flash
My personal summer is really a bummer
I'm having a hot flash.
Comes on like a car crash
No warning just hot flash
Outside it is nippy, but I'm hot and drippy
I'm having a hot flash.

There's a song about "My thighs" to the tune of "My Guy" .
"Change, Change, Change" to "Chain of Fools".
"Stayin' Awake" to the Bee Gees' "Staying Alive".
I could go on, but I'd want to kill myself.

Ain't it charming?
I must say in all fairness that the ladies doing the singing sound stunningly excellent. It's just a damned shame the show is as dumb as a box of rocks.

It is done all over with a core group of honchos-- just a couple of directors, musical directors, and a small squadron of mix-n-match ladies who can sing, sing, sing and they do the same exact show in every venue.