She may mentor aspiring singers on The Voice… But Christina Aguilera will soon be rockin’ the stage.

The 32-year-old half-Ecuadorian American singer and coach on NBC’s hit reality singing competition has been added to the growing list of performers at this year’s American Music Awards.

Aguilera will perform the power ballad “Say Something” with New York duo A Great Big World.

Aguilera and A Great Big World, as well as new addition Ariana Grande,  will join previously announced performers Rihanna, Justin Timberlake, Luke Bryan, Miley Cyrus, Florida Georgia Line, Lady Gaga, Ke$ha, Imagine Dragons, Kendrick Lamar, Macklemore & Ryan Lewis, One Direction, Jennifer Lopez, TLC (with a special guest), Katy Perry and Pitbull, who will also serve as the award show’s host.

The AMAs will be broadcast live from the Nokia Theatre in L.A. on Sunday, November 24, from 8:00 – 11:00 pm ET on ABC.

Winners are determined by fan votes at AMAvote.com. Fans also can vote on Twitter for the first time this year.

The American Music Awards is produced by Dick Clark Productions.