Funny that you compare these two, Bad Blood was recorded in the same place than Heart Attack, and Confident is about unity, unlike Bad Blood when they're fighting with each other from start to end

All Night Long wasn't a single, that means it wasn't sent to radio

If you think that was good, listen to this other acapella from Mariah Carey, it was during a time her voice was in bad shape because she barely had rest and sounds way better https://www.youtube.com/wat…