Kanye West and Jay-Z's feud was reportedly not over a dispute related to Tidal. Rather, sources close to Jay-Z say that Hov's Kanye-directed diss on 4:44 was a result of Kanye dissing Jay at a concert during the Saint Pablo Tour.

Sources close to Kanye and Jay-Z say Jay was upset when Kanye went on a rant against him at a November 19th concert in Sacramento.

On "Kill Jay Z": “I know people backstab you, I felt that too/But this 'f**k everybody attitude' ain’t natural/But you ain’t the same, this ain’t Kumba ‘Ye/But you got hurt because you did cool by 'Ye /You give him $20 million without blinking/he gave you 20 minutes on stage, f**k what was he thinking?/'F**k wrong with everybody?’ is what you saying/But if everyone is crazy, you’re the one that’s insane"

Sources also said Kanye had no idea Jay-Z would go at him in 4:44.

Source: tmz.com