“I Will Always Love You”, which is about a breakup, at a wedding. I swear some people only read titles.
Just as X reaches the point if telling Y it’s all over: After You’ve Got What You Want, You Don’t Want It.
My brother the priest told me he"d lost count of the number of people he’d had to dissuade from choosing Blaze Away or Smoke Gets In Your Eyes for a cremation.
And for the OP, You’ll Never Walk Alone was adopted by the fans of Liverpool FC, after it became a hit for a group whose leader, coincidentally, died recently:
Losing My Religion should go down well at a Confirmation party.
ZZ Top’s Drivin’ While Blind at a DUI Victim Impact Hearing
The night that John Lennon got shot, it was the last day of classes of my first semester at college, so a few of us had gone out drinking. We didn’t hear the news until we got back to the dorm. Being drunk and young and stupid, we decided it would be funny to call the local radio station and request songs like the Beatles’ “Happiness Is A Warm Gun”, Queen’s “Another One Bites The Dust”, and Talking Heads’ “Psycho Killer”.
This one really happened and I still find the choice of song bizarre and puzzling:
“You can’t always get what you want” played at Trump Rallies.
This one might be a bit feeble, but as muzak for a doctor’s waiting room, how about “Your Tiny Hand Is Frozen”?

Wedding reception. Get an Ugly Girl to Marry You
Or Dr. Hook;s “When You’re In Love With a Beautiful Woman”.
The tune is mellow, and the title sounds perfect, as long as nobody listens to the lyrics: “You know that it’s crazy, you want to trust her, then somebody hangs up when you answer the phone”.
Ninja’ed by Burpo! (Havin My Baby / Planned Parenthood)
At an anniversary celebration - I’m in Love the Other Woman

“Fifty Ways to Leave Your Lover” at a wedding reception…
I had the bluegrass band at our wedding play “Man of Constant Sorrow” as my new wife and I were walking back down the aisle - I think she and I were the only ones who got it.

At an anniversary celebration - I’m in Love the Other Woman
When my husband and I were planning our 25th anniversary celebration, I posted here asking for song suggestions.
One poster suggested “Me and Mrs. Jones”. He was mortified when I pointed out that it was a song about adultery. Whoopsie! We did NOT use it.
“Junk Food Junkie,” at an Overeaters Anonymous meeting. Or Jenny Craig.

This one really happened and I still find the choice of song bizarre and puzzling:
“You can’t always get what you want” played at Trump Rallies.
I would think the correct song would be this one.
(Give Me Some Money – Spinal Tap)
I was at Key Bank 3 years ago when the sound system played “Take the Money and Run” (by Steve Miller band).
For a political rally or any event to honor someone that might be considered “a real motherfucker of a gentleman” (as Freddie Mercury put it)…
Death on Two Legs by Queen
At any nonagenarian’s funeral:
“Only the Good Die Young”
2024 Republican National Convention
Georgia On My Mind