(HIPHOP) In 1992, the veteran rapper KRS-One attacked P.M. Dawn, a wack duo that had at the time scored a huge hit with a song that sampled Spandau Ballet. In the eyes of KRS-One, P.M. Dawn were pagans selling crystals and incense in the temple of hiphop, and he was not having it—"the teacher" overturned tables and expelled the heathens. In the end, however, KRS-One would lose the holy war against the "wik, wik, wack." In a world that's now ruled by totally wack rappers, KRS-One is a reminder of a happier time, when wack rappers would get "beat down to the very last compound." (Chop Suey, 1325 E Madison St, 324-8000. 8 pm, $15, all ages, bar w/ID.)