yeah as its been stated it started with HHID. TI was on top at the time and took it as a diss and he responded in a couple interviews and threw a sumblim or two. TI was actually the first to address it and so nas acknowledged TI and said it wasn't a diss to the south right at the begining. i think they spoke on it though cause after that TI has said in a couple of interviews that things can be easily misinterpreted as a diss and so he doesn't respond unless he knows for certain that an artist is coming at him. also, nas shouted out TI on the introduction to "Be A ****** Too"
and lupe and TI are both on atlantic, and Lupe is good people with Grand Huslte, thats the connection there.