  We show that CP asymmetries in $b\to s$ hadronic decays are potentially
affected by the presence of massive color-octet particles strongly coupled to
the third generation quarks. Theories with warped extra dimensions provide
natural candidates in the Kaluza-Klein excitations of gluons in scenarios where
flavor-breaking by bulk fermion masses results in the localization of fermion
wave-functions. Topcolor models, in which a new gauge interaction leads to
top-condensation and a large top mass, also result in the presence of these
color-octet states with TeV masses . We find that large effects are possible in
modes such as $B\to\phi K_s$, $B\to \eta' K_s$ and $B\to\pi^0 K_s$ among
others.
