  Within the framework of a holographic dual model of QCD, we develop a
formalism for calculating form factors of vector mesons. We show that the
holographic bound states can be described not only in terms of eigenfunctions
of the equation of motion, but also in terms of conjugate wave functions that
are close analogues of quantum-mechanical bound state wave functions. We derive
a generalized VMD representation for form factors, and find a very specific VMD
pattern, in which form factors are essentially given by contributions due to
the first two bound states in the Q^2-channel. We calculate electric radius of
the rho-meson, finding the value <r_rho^2>_C = 0.53 fm^2.
