There was one I heard a couple of times in the L.A. market during the late 70s. It seemed to reference Al Jolson resurrecting or coming out of cryosleep and he sings snatches of songs with lyrics such as Say has anybody seen my mammy, and what about my pride and joy? My one and only Sonny Boy.
Damned if I can find it, though.
I remember this. Doubt many else do.
The album rock station in my hometown had this on daily rotation.
How about this?
which was written by this band.
I remember “Dear Abbie” (misspelled “Abby” on that video), which Kinky Friedman performed on Saturday Night Live. The newspaper columnist Dear Abby wanted to sue, but Friedman’s defense was that he was singing to Abbie Hoffman.
I knew it because I had Oregon’s Out of the Woods with that tune on it, and I looked it up to make sure it didn’t have anything to do with Wichita (it doesn’t; “Witchi-Tai-To” is from Comanche, a Uto-Aztecan language, but Witchita is Caddoan). It’s a peyote ceremony chant of the Native American Church.
My nominees for forgotten are
In 1969 there was a rumor that a giant earthquake was about to destroy California. The rock group Shango cashed in on it with the song “Day After Day (It’s Slippin’ Away)”. It was their only top 100 hit.
I don’t specifically remember mentionting a song to someone that they said they do not remember, but I wonder how many people remember some of our local Canadian artists.
I think it was 1990 when I was 10. One day I did something I didn’t usually do. I tuned in to a local Toronto radio station (maybe CHUM-FM, or maybe CHFI-FM98) and recorded some songs, all of which were by Canadian singers. I re-listened to it one fine summer day a few years later in 1994 and really enjoyed it. All of it was what you would call easy listening. I should still have this broadcast on a CD to which I digitized some of my old recordings.
Anyway, the selection included a great song by Toronto singer Louisa Florio (fun fact: she did a demo version of Tell It To My Heart before Taylor Dayne released it). The song is called Oh Boy (Can’t Go On Loving Like This).
As I see, it was released as a single. I found it on a compilation of disco music on Youtube in 2019, and have not been able to find any other upload of it. I just checked my favorites on Youtube and the song seems to have been taken down.
This song was followed by another one that I really like, Stephen Bishop’s Mister Heartbreak. This one has been uploaded. It’s from an album called Bowling in Paris.
There was also a song by Montreal-born Gino Vannelli, who would perhaps be a bit better-known, entitled If I Should Lose This Love. This song may be somewhat better-known, here is a video of him performing it live.
Finally, there was a song that I didn’t record the whole thing; it was a very easy listening duet and the chorus went something like “All night long you’re whispering to me / Whispering to me all night! / All night long!” I have googled around and have not been able to find hide nor hair of this song or the artists.
Bonus question: who remembers Melleny Melody / Melleefresh? A zany local Toronto singer, actress, and voice actress (she is known for example for being the voice of Cheer Bear on the Care Bears Family cartoon series). Her performances featured her in flashy costumes and wigs and she drove an art car, a pink Volkswagen decorated with bowling trophies, rhinestones, and Kewpie Doll faces.
Regarding “Please Come to Boston,” by Dave Loggins. I remember it being all over Top 40 AM radio in the timeframe you mention. For two or three weeks, before dropping back down, and mostly forgotten.
But not by me. For some reason, it has stuck with me to the point where I could probably rattle off the lyrics, or some of them anyway, by memory. In fairness, I have heard the song in the years since, but only if I put the CD in the player, and that’s how long ago it was that I last heard it. (I haven’t had a working CD player since 2008.) Anyway, let’s test my memory on a verse:
Please come to Denver when the snow flies,
We’ll move up into the mountains so far that we can’t be found,
And throw “I love you” echoes down the canyons,
And then lie awake at night 'til they come back around,
Please come to Denver, she just said "No,
Won’t you come home to me?"
How’d I do?
Nobody will remember Alexei Sayle’s follow up to Ullo John Got A New Motor.
Pretty damned good! 
I must have loved the song because I remembered all the words and I’m pretty sure I haven’t heard it since the 70s. It puts me in mind of Pure Prairie League songs from around the same time.
If you remember the NBC summer replacement Dean Martin Presents the Golddiggers from 1970, the girls did “Gimme Dat Ding” in one of their opening numbers. (I always thought it was “Gimme That Thing,” but what do I know?) I loved that show for obvious reasons and never missed an episode! 
Dean Martin Presents the Golddiggers (TV Series 1968–1970) - IMDb
Here they perform it on Dean’s weekly variety show:
https://youtu.be/LYMcRhvIUcY
I had an enormous crush on the one with the long blonde hair! 
The only reason I remember this song is because it came on our car radio ca. 1966, and my dad thought it was a commercial at first.
I’m 95% convinced the Cantina Band song from Star Wars is based off Gimme Dat Ding.
I still own that on vinyl!
I think I heard this song once on the radio - Soft Core, by Maurice and the Cliches - but it stuck in my head. Apparently a top 100 hit though, and I happened to listen to it a few days ago.
Transfusion - Nervous Norvis
Because of this thread I discovered something…
When I first started listening to the radio there was a song that they played. Since then I’ve mentioned it to a few people and nobody had heard of it.
Today I learned… It was a local band. I assume that the station I listened to somehow got it and played it. So, the only people that would know the song would be those that listened to that station at that time.
And nobody would care about what song it is. And it would give away where I lived and when.
That must’ve been Udo Jürgens’ cover. He often sang it on German TV in the seventies, and I think it was one of his concert staples. (nitpick: it would’ve been “Schlagerparade”)
Harry Belafonte himself also was a frequent guest in German TV shows of the 70s and 80s, and he also always sang “Matilda”.
This one even made it to Germany. I remember it from the radio at the time.
This was my favorite song in the world when I was 6 years old:
Until I sought it out a couple of years ago, I hadn’t heard it anywhere since 1981.
Had this on 45, six years later it was used in the Peter Sellers film Being There. The album version is almost twice as long.
