“Put another nickel in,
In the nickelodeon.”
-Music, Music, Music, Teresa Brewer
Little Nash Rambler (Beep Beep), The Playmates
I AM!
You hear that, chair? 
Jimmy Buffett’s “Margaritaville” has a line:
Kids, the line is not “pop tart”. Pop Tarts are little pastries and not particularly dangerous. They are highly unlikely to cut your heel open. They will catch on fire in the microwave if you try to heat them while still in their metal lined wrapper.
A pop top, also known as a pull tab, was a little metal ring attached to a sharp piece of metal that sealed canned drinks up until, oh, 1980 or so.
Once you pulled the tab to open the can, you had to dispose of the pop top. Polite people didn’t leave them on the beach where they could be stepped on, but would follow dad’s lead and drop the pop top back in the can. Then mom would yell about how you were learning a bad habit, were going to to swallow the pop top and choke to death on it.
If you were a romantic, you could make a necklace out of them for your girlfriend.
Or a hat band for your cowboy hat. Or a “beaded doorway”*. (my friends drank a LOT of beer.)
There was an episode of Emergency! where a guy swallowed the pull tab. Always liked that one.
*another dated reference from an even older time
From Jackson Browne’s The Load-Out, you’ve got chock full of outdatedness:
The theme of “Russians” by Sting seems entirely outdated these days.
Before 2006, people probably wondered why Gustav Holst’s “The Planets” suite doesn’t include Pluto (which hadn’t been discovered when Holst wrote it.) Of course, it’s less of a problem now that Pluto’s been demoted to non-planet status.
The first line of that song is “Oh, flew in from Miami Beach B.O.A.C.” BOAC was British Overseas Airways Corporation and is now British Airways.
Roger Waters, “What God Wants, Part II”
God wants guilders
God wants kroner
God wants Swiss francs
God wants French francs
(Oui il veut des francs francais)
God wants escudos
God wants pesetas
Don’t send lira
God don’t want small potatoes
I imagine that now as “God wants euros and God wants euros; God wants euros and God wants euros…”
Sounds like a story there. Did you find that out from experience?
“Dizz Knee Land” by Dada, written in 1992 has the line “I just flipped off President George, I’m going to Dizz Knee Land!” I always liked that it came around again on the old Jukebox of Life that flipping off President George was a thing once more, but now not so much.
Prices will date things. Harry Chapin’s “Taxi,” for example, features Harry telling about the time he was a cab driver. He picked up a woman in his taxi, recognized her as an old flame, they chatted a while about old times while he drove to her destination, and he droppped her off there.
“Then she hands me twenty dollars for a two-fifty fare, and says, ‘Harry, keep the change’.”
I don’t think you can get into a taxi for less than $3.50 nowadays, never mind ride to your destination.
Travis Tritt’s song “Here’s a Quarter, Call Someone who Cares”.
I was thinking Clint Eastwood more than Neil Diamond…
That song is made of dated references. I think Mae West is the one of the most likely to still be recognized. And some of the contexts other people who might be remembered were mentioned in are certainly confusing…If not for the internet, I’d not know Anna Sten, so although I knew who Sam Goldwyn was, that line would have baffled, and I had no idea Eleanore Roosevelt advertised for Simmons until looking it up due to the song.
Bruce Springsteen, “57 Channels and There’s Nothing on.” 57 channels? You’re adorable. Still nothing on, though.
Please Mr. Please, don’t play B17? (Olivia Newton-John)
Kids would be thinking the song was called B17.
Pink Floyd had that beat with (Nobody Home), “Got thirteen channels of shit on the TV to choose from”
Type 55, one of their black and white films, required that step right up until they killed their film products in 2001.
Chuck Berry - Memphis, Tennessee.
“Long distance information, give me Memphis Tennessee
Help me find the party trying to get in touch with me.”
That must be a strange concept to some.
Simon and Garfunkel, “America.” The song’s narrator, and Kathy, his girlfriend, are riding a Greyhound bus.
“Toss me a cigarette; I think there’s one in my raincoat.”
They would allow him to smoke a cigarette on a Greyhound bus? In those days, yes; though it would be unthinkable now.