Watch: NBC teases ‘The Voice’ season 6 (Promo video)

NBC released the first promotional video for The Voice season six.

The preview focuses on the relationship of mentors. Apart from Adam Levine and Blake Shelton, the new season will also see the return of Usher and Shakira, replacing Cee Lo Green and Christina Aguilera.

The new edition of The Voice will premiere in the U.S. on February 24, while in Brazil the program will broadcast on Sony cable channel from March 16, 2014.

Check out the promotional video below: