Shakira at The Voice event

Shakira and Usher pose at a media event for the television show "The Voice" in Hollywood, California. (REUTERS)

Shakira poses at a media event for the television show "The Voice" in Hollywood. (REUTERS)

Shakira (REUTERS)

Show host Carson Daly poses at a media event for the television show "The Voice" in Hollywood, California. (REUTERS)

Celebrity coaches Blake Shelton (L) and Adam Levine pose at a media event for the television show "The Voice" in Hollywood, California. (REUTERS)

Shakira and Usher (REUTERS)