Filming for the latest season of The Voice is underway, and Christina Aguilera already has her fellow mentor on the set helping to dole out advice.

After taking a year off from the show Christina returns slimmer and well rested. So now only time will tell if she continues with her constant flirting and bickering with Adam, or if she picked up a thing or to on how to be humble from Shakira's brief stint on last seasons show, or maybe not. She has picked Ed Sheeran as her fellow mentor to help guide her team and it may be a good match.

Check out the video below as they talk about the collaboration.