  We investigate the spectral function of a hole moving in the orbital-ordered
ferromagnetic planes of LaMnO$_3$, and show that it depends critically on the
type of orbital ordering. While the hole does not couple to the spin
excitations, it interacts strongly with the excitations of $e_g$ orbitals
(orbitons), leading to new type of quasiparticles with a dispersion on the
orbiton energy scale and with strongly enhanced mass and reduced weight.
Therefore we predict a large redistribution of spectral weight with respect to
the bands found in local density approximation (LDA) or in LDA+U.
