RJBBTA is...

Grand Rapper Scary (MPEG, 2.9MB)

Tony G (MPEG, 1.7MB)

Rock Oppster (MPEG 2.9MB)

Joeski Love (MPEG 1.6MB)

B Master J (MPEG, 1.5MB)

Run DRC (MPEG, 1.3MB)

If you STILL don't know what RJBBTA is... well, you're probably better off for it.

(No offense, guys.)