I saw Chali 2na with the New Orleans funk outfit 'Galactic'. Galactic made a record called 'From the corner to the block' with all kinds of hiphop MC's, and the only 'assignment' these guys were given, is that every song has to be about a 'corner'. You can guess about the different interpretations of every MC's lyrics, pretty cool idea. Simple, but cool.
Anyway, I saw Chali 2na mentioned on the first page OTT by Accelerando. Awesome, bad ass voice.