Fifth Harmony: Sleek, slick and relatable

Every generation gets the girl group it deserves. For millennial tweens, that's Fifth Harmony, a group assembled on "The X Factor" that went on to finish third on the television competition show. As is often the case in the post-"American Idol" world, losing doesn't end careers -- just ask fellow third-place finisher One Direction -- and Fifth Harmony has quickly become the American show's biggest success story.