Pharrell Williams sings 'Happy' at Global Citizen Festival
Pharrell WIlliams sings 'Happy' at Global Citizen Festival along with Usher and Coldplay's Chris Martin.
Oprah: Let's become the change we want to see09:46
Yasmin’s share: Treat immigrants with compassion, not scorn01:18
Tom Brokaw remembers covering Mandela's release from prison02:57
Highlights from the Global Citizen Festival in South Africa in honor of Mandela03:39
One-On-One with Makaziwe Mandela-Amuah06:15
One-On-One with Trevor Noah08:17