Enka.

[spiro]

Ok. I know this is not the most important thing right now but i was just wondering; in chapter 419 Hachibi keeps mentioning his enka.
...
Does anyone know what it is?

[Freakshow]

Dude, how many unnecessary threads are you making?
Do you intend to make a thread for every question?

Anywho, nothing much is said about Enka... >_>

[Shikamaru-sensei]

its supposed to be a type of singing by the looks of it. But in terms of the Narutoverse it also suggests that it is a group of ninjas. That group is who 8-bi is going to seek out now that he isn't restricted to the cloud country.

[chros.nn]

enka is a genre of japanese music
it's a kind of traditional opera-ish kind of music with a lot of traditional string instruments.
please google before asking, it really helps cut down on redundant threads.

[Veej]

It's a slow operatic ballad style of music geared toward an older audience. Too bad Killerbee won't be the first black guy to adopt the genre: http://www.japanprobe.com/?p=3695