(NBC News) "The Voice" returns for Season Six tonight on NBC.
The competition among singers and the coaches is fierce.
Shakira and Usher are back in the coaches' chairs, hoping to build a strong team and looking for their first voice win against former champs Adam Levine and Blake Shelton.
Shelton is a three-time winner, while Adam Levine scored his second win last season with Jamaican Tess Anne Chin.
This season the talent is again top notch. All four coaches turned their chairs 11 times during the blind auditions, setting up some heated battles between them.
The 2-hour season premier begins at 8 p.m.