How Kingsley Ben-Adir Secretly Prepped for Bob Marley Biopic on Barbie Set! (Exclusive)

Kingsley Ben-Adir sits down with ET's Kevin Frazier to talk about his upcoming film, 'Bob Marley: One Love.' The actor breaks down his learning process to speak and perform like the reggae icon. Plus, he shares how he fit in time on the 'Barbie' set to learn more about his upcoming role as the late musician. The film hits theaters on Feb. 14.