"The Voice" set a goal for itself of putting its competitors' vocal talents first and foremost when deciding who really deserved to be called America's next new singing idol.

So why is one of its judges lip-syncing on live TV?

The Internet was abuzz Wednesday with angry "Voice" fans stewing over judge Shakira's apparently pre-taped performance of her new song, "Empire," during Tuesday's episode of "The Voice."

After all, why is it fair to expect one of her hopeful "Voice" team members to get over the live performance jitters to sing in front of millions when she was unable or unwilling to do so herself?

Her hips don't lie, but her lips seemingly do.

Check out the video above for Shakira's full performance and see where it ranks among pop music's worst lip-syncing scandals.