Date: Late 1997

When Canibus wrote his original verse for LL Cool J's posse cut in 1997, he included a line that LL didn't like. "L, is that a mic on your arm?" Canibus rapped. "Let me borrow that!" So LL asked him to remove it from his verse. But even though Canibus agreed to do it—and even though he told LL that he was trying to pay homage to him, not diss him, by mentioning his mic tattoo in the first place—LL decided to use his verse on the song to teach Canibus a lesson. So he filled it with references to Canibus asking to "borrow" his mic and included lines like, "Every little boy wanna pick up the mic/And try to run with the big boys and live up to the real hype."

It obviously didn't sit well with Canibus. So in early 1998, the young rapper released a diss track called "Second Round K.O." that featured an intro and ad libs from Mike Tyson and Canibus throwing shot after shot after shot at LL. It's widely regarded as one of the best diss tracks of all time, and it led to an all-out war between the two. LL struck back with a diss song of his own called "The Ripper Strikes Back" as well as another song called "Back Where I Belong." Canibus countered with a follow-up to "Second Round K.O." called "Rip the Jacker." And all hell broke loose. In the end, a true victor was never really crowned in their battle. But looking back, it's crazy to see what one little rap line was able to do.