MC Safahri Ra lived through Hurricane Katrina and delivers the story in his amazing freestyle.

Listen as nine-year-old P.Star proves her amazing MC skills. This little girl can spit! Priscilla Star Diaz opens the show rhyming a cappella and telling stories about her pre-teen life in Harlem.

MC Dola raps live in Swahili, rhymes acappella, plays selections of his music and also some hot tracks by Tanzanian MCs. In conversation with host Charlie Ahearn he delivers an intimate update on African hip hop.

Kurtis Blow is a pioneer, statesman and historian of hip hop music and culture. An amazing gospel freestyle over Kanye West's smash single "Jesus Walks."

DJ Synapse gives Charlie Ahearn a quickie course in scratchology, deconstructing the mysteries of the needle and the mixer as he performs an autopsy on the multi-layered tissues of today's hip hop sound.

This is Wild Style filmmaker Charlie Ahearn's introduction to his history of hip-hop with Grandmaster Caz.

Charlie Ahearn brings D.O.A.--"the human beatbox"--to the Clocktower, where the unique vocal percussionist creates an astonishing range of sounds, from electronic blips and screeches to hilarious send-ups of classic hip-hop and funk.

Perhaps the most beloved figure in hip-hop around the globe, Afrika Bambaataa celebrated his 30th anniversary with Charlie Ahearn. Expect everything from James Brown to bangra to Burt Bacharach.

The clown prince of hip-hop kicks off this live session with Charlie Ahearn by telling tales of recent deejay adventures from partying with Will Smith in Hollywood to playing the Playboy mansion for Hugh Hefner.

Fresh from the New York underground, Hangar 18--the MC duo Alaska and Wind N' Breeze--join Charlie Ahearn in the Clocktower with the DJ and producer Pawl.