How Has Usher Changed The Dynamic On 'The Voice' Season 4?

January 4, 2013

Usher and Blake Shelton chat with Access about Usher joining "The Voice" for Season 4. How has his presence changed the dynamic of the show? And, as a fan of the show before joining, was Usher nervous about how he'd get along with the other coaches? Plus, how is Blake getting along with Shakira?