live freestyle on stage in los angeles, talib kweli featuring krs-one on the bob marley sample that turned into the Perfect Beat. hip-hop teaches us to analyze history, stimulates the desire to decipher the coded and layered meanings behind the bars. hip-hop is a culture and a language where the artist essentially preaches as the audience attempts to follow his or her complex patterns of poetic insight, inspiring the crowd to actively participate in the lesson. to perform live is one challenge, to improvise live is another. krs begins his verse and the crowd, knowing the lyrics to the song and realizing he is saying something new, reacts to the freestyle. then someone throws a bandana at krs and he incorporates it into his verse. check that out.