In a vehicle that includes a rear fender for covering the upper portion of a rear wheel, a mud guard cover for covering the rear portion of the rear wheel, and a tail lamp arranged around the rear fender and the mud guard cover wherein the tail lamp includes light-emitting diodes as light sources, and includes a light-emitting diode board for placing the light-emitting diodes thereon, a control element board for placing a control element for controlling the light-emitting diodes thereon, a housing for collectively accommodating the light-emitting diode board and the control element board, and a lens for covering the housing and the control element board that is arranged downwardly of the light-emitting diode board.