Did Jay-Z vs. Nas , rap's greatest beef, begin over a missed studio session?

There are conflicting accounts of what would have been a historic collaboration—Some say it was supposed to be "Bring It On," others say it was supposed to be "Can I Live”—but one thing is clear, Nas was supposed to be on Jay-Z's classic 1996 debut Reasonable Doubt.

Jay wanted it to happen. Nas agreed…and then he didn't show up to D&D Studios. And from there, rap's greatest beef began.

According to Dame Dash , Nas and AZ were supposed to be on “Bring it On.” And even though they committed, they kept on blowing off the sessions.…