Small hijack - I'm likewise old and in the way, with no points of reference as far as truly modern pop music goes. I have piano gigs in restaurants, and I get some tweeny requests for A.G. and the ubiquitous T.S. and I have to say, sorry, I don't know those!
Then I pull out my flip phone, and even the smallest of children understand immediately.
HOWEVER, the latest album by Meghan Trainor I thought had some actual music on it. So there might be hope for me!
cheers,
-Tom