Multiple artists can record the same song. Just like how beats can go to multiple artists. Just like how if one artists records and releases a song to a beat but then another artist has a song leak with the same beat that doesn't make that a mixtape song or a reference track.

Kendrick definitely wrote or at least helped to write Jay Rock's verse on Money Trees. That
"Hope them boys don't see my stash
If they do tell the truth, this the last time you might see my ass"
is totally a Kendrick cadence. Can point out other songs where he does the exact same thing

I also believe the part on Say What's Up where Black Hippy do the tennis flow thing was written by Kendrick or just one member. Doesn't make sense for niggas to write just one line or two for their part

Oh, this is another "Keem ghostwrites for Kendrick" thread for insecure Drake stans to get their lies off? Nevermind

Here is a recent example of artists recording the same song. These are female rappers, but this is the most recent example that pops up. Both Latto and Coi Leray recorded Blick and had very similar verses.

hot97.com/hot-news/coi-leray-responds-to-lattos-leaked-version-of-blick-blick

Kendrick also does not have writing credits on 16 which further proves this theory.

Yeah, want a bad b**** like me? Keep on wishin', baby (Yeah)
Buss it open, first you gotta kiss it, baby (Yea)
Make 'em sell his soul, this p**** different, baby
I can't let these broke ass niggas fix me, baby (Hell no)
I hop on top and ride that d***, he acting lazy (Ahh)
Got that booty jumping like crack in the .80's (Ay)
But I don't want relations, nigga, f*** you, pay me (Yes)
I call 'em big daddy, he call me lil baby (Ah)
Ayy, hold up, hold up, hold up
All these diamonds different color, color, color (Yeah)
I done ran up all these comma, comma, comma (Yeah)
Put it on 'em, he'll nеver find another (Ahh)
Lick the p**** just likе fa-la-la-la-la-la (Ahhh)
Pink and I pop it like hubba, bubba, bubba
Way too pretty to be f***ed under the covers
New York, nigga, tryna make me meet his Muva
Keep the blick, blick, b****, I'm from the Gutta (Brrt)

VS

Yeah, want a bad b**** like me? Keep on wishin', baby (Keep on wishin', baby)
Bust it open, first you gotta kiss it, baby (First you gotta, yuh)
Yeah, want another nigga, I go fishing, baby (I go fishing)
Yeah, I never let these broke ass niggas fix me, baby (Never let 'em fix me, baby)
Yeah, I hop on top and ride that d***, he actin' lazy
Yeah, that p**** soakin' wet, it's drippin' like a navy
Yeah, I call him big daddy, he call me lil' baby (Uh)
They know I'm the s***, I need some tissue, baby
Ayy, hold up, hold up, hold up
All these diamonds different color, color, color (Yeah)
I done ran up all these comma, comma, commas (Yeah)
Eat the cookie like a Nutterbutter-butter
Lick this p**** like just fa-la-la-la-la-la (Yeah)
Island ting, she a Bahama mama, mama (Mhm)
Do whatever for a dollar, dollar, dollar (Yeah)
Gucci snake up on my collar, collar, collar (Yeah)
F*** that nigga, never gave that boy my number

Sza wrote good kid maad city

May is mental health awareness month @op

Just know you matter even if your opinions are trash

That sixteen ref track is hard