1. An image capturing apparatus capable of shooting still images during moving image shooting, the apparatus comprising: still image shooting unit adapted to perform still image shooting during moving image shooting to obtain a still image; generating unit adapted to generate an alternate image corresponding to a moving image upon still image shooting performed by the still image shooting unit using the still image; setting unit adapted to set respective white balance control values for the still image and the alternate image; and image processing unit adapted to perform image processing on the still image and the alternate image using white balance control values set by the setting unit.