Usher, Shakira join `The Voice`

Los Angeles: Singers Usher and Shakira have reportedly joined the US reality show ‘The Voice’ as coaches.

The singers have replaced singers Christina Aguilera and Cee Lo Green, who had left the show due to commitment issues, reports a website. "Doing two back-to-back cycles of this show requires a tremendous amount of time, and we are happy to accommodate the commitments made by Christina and Cee Lo," Robert Greenblatt, chairman of NBC Entertainment said. The other two coaches of the show, Adam Levine and Blake Shelton, have retained their positions in the fourth season of the reality show franchise. IANS