Post Malone had a lot of success with his #1 hit-single “Rockstar” featuring 21 Savage, but tonight we learned he didn’t actually write the song himself. Joey Badass revealed to the world via Twitter that he co-wrote the song with Post saying This is facts… I actually co-wrote the song w post 🙂 quietly got my first #1 off that more ghostwriting in 2018″. Check out the Tweet we embedded below.


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