i haven’t listened yet so I might be completely wrong without hearing the context but if we’re talking just rap bars/friendly competition I’d probably guess Lupe, joe been trying to have a bar off for years and probably the feature he wants the most along with Jay.
Edit: yeah it doesn’t sound like it’s him given the context lol
The way Joe was talking is sounds like they wanted the smoke. I aint seen nothing from Lupe about killin Joe on some rap shyt just street fighter.