Ow ow! Check out these blond bombshell look-alikes! If we didn't know any better, we would've thought that Christina Aguilera was Julianne Hough's tanner sister! Skin tone aside, these beauties have similar bone structure, full lips, beautiful blond curls, piercing eyes and slender noses. So, do you think singing sensation Christina Aguilera and 'Footloose' starlet Julianne Hough look alike? Let us know by casting your vote below.