Sorry, everything about the other women on the show has pretty much been removed from my brain to make room for Ms. Post’s ample talents. 
She did backing vocals on Car Jamming.
Oh yeah - I’m with you - I was just going for the funny. She starred in Little Shop of Horrors on B’way, too, IIRC…she’s a legit talent…
…but apparently without Markie Post’s, um, assets…