  We compute the precise elementary/composite field content of mass eigenstates
in holographic duals of warped models in a slice of AdS_5. This is accomplished
by decomposing the bulk fields not in the usual Kaluza-Klein basis, but rather
into a holographic basis of 4D fields, corresponding to purely elementary
source or CFT composite fields. Generically, this decomposition yields kinetic
and mass mixing between the elementary and composite sectors of the holographic
theory. Depending on where the bulk zero mode is localized, the
elementary/composite content may differ radically, which we show explicitly for
several examples including the bulk Randall-Sundrum graviton, bulk gauge boson,
and Higgs boson.
