What are some popular rap bars that have made a significant impact on the hip-hop community?

Some popular rap bars that have made a significant impact on the hip-hop community include "I'm not a businessman, I'm a business, man" by Jay-Z, "I got 99 problems but a b ain't one" by Jay-Z, and "It was all a dream, I used to read Word Up magazine" by The Notorious B.I.G.