Ally Brooke and Dinah Jane Hansen - Fifth Harmony were one of the most popular US girl groups of the 2010s, following in the footsteps of acts like Pussycat Dolls and Destiny's Child.

The couple has been together for eight years. ET looks at celebs with their own Barbie dolls, including Zendaya, Jennifer Lopez, Fifth Harmony and more. Camila Cabello chats with ET at 'The Voice ...