  We study circular orbits that are tilted with respect to the equatorial plane
around a Kerr black hole. We write the equations for the parameters of a tilted
circular orbit in terms of the orbit's radius and the Carter constant, or
equivalently, the tilt angle. The tilted innermost stable circular orbits
(TISCO)s are discussed as well as the last circular orbits. The azimuthal
precession of an orbit is then studied and an approximate expression for the
precession speed is given. We finally try to link tilted circular orbits to
quai-periodic oscillations in some astrophysical black hole systems.
