Shakira and Usher joined the season 4 of musical show, The Voice that will start airing on April 1, 2013 on AXN.
The R&B superstar and Latina singer will fill in the position Cee Lo Green and Christina Aguilera.
Shakira and Usher will join the two other original coaches Adam Levin and Blake Shelton, and host Carson Daly and social media correspondent Christina Milian.
