  We discuss the consequences of violating the no-hair theorem on magnetic
fields surrounding a black hole. This is achieved by parametrically deforming
the Kerr spacetime and studying the effects of such deformations on
asymptotically uniform magnetic fields around the black hole. We compute the
deformed electromagnetic field for slow spins and small deformation parameter,
and show that the correction is of order the deformation parameter and mimics
the angular structure of a quadrupole.
