  The contribution of reducible connections to the U(N) Chern-Simons invariant
of a Seifert manifold $M$ can be expressed in some cases in terms of matrix
integrals. We show that the U(N) evaluation of the LMO invariant of any
rational homology sphere admits a matrix model representation which agrees with
the Chern-Simons matrix integral for Seifert spheres and the trivial
connection.
