Definitions by the Ayatollah of Rock'n'Rollah

Elements of Hip-hop 

1. MC
2. DJ
3. Breakdancing
4. Graffiti
5. Crowd participation

As heard in the Jurrasic 5 song "LAUSD" from their Quality Control album, the elements of Hip-hop include the crowd. Knowledge is good, but without crowd participation it's nothing.

Elements of Hip-hop by the Ayatollah of Rock'n'Rollah November 2, 2008