The present disclosure is related to a showerhead. The showerhead includes a housing defining a fluid inlet and a chamber in fluid communication with the fluid inlet, a rotatable turbine received in the chamber and including an eccentric cam positioned on a downstream side of the turbine, and a shutter positioned on the downstream side of the turbine. The shutter includes a shutter body defining an oval-shaped aperture in which the eccentric cam is received such that the shutter oscillates along a rectilinear path as the turbine rotates.