Pharrell Williams to coach season seven of 'The Voice'

Pharrell Williams will be a coach on season seven of the singing competition "The Voice," replacing Cee Lo Green, who announced in February he was stepping down after serving on four of the show's first six seasons. Williams, a Grammy Award-winner, "has already made a considerable impact as a mentor" to young singers on Usher's team in season four, NBC executive Paul Telegdy said Monday in a statement. "Happy" singer Williams, who turns 41 on Saturday, tweeted Monday, "This is going to be so fun."