Ariana Grande is set to light up the stage for the upcoming American Music Awards. Joining the "Sam & Cat" star is none other than Christina Aguilera plus a few more others. So what should "Arianators" expect from Grande's performance at the upcoming AMA's?

The American Music Awards is set for this Sunday, November 25, 2013. A number of celebrities have already been added to the line-up. "The Voice" judge, Christina Aguilera is set to hit the stage along with Nathan Sykes' girlfriend, Ariana Grande.

Rather than a duet involving "Nariana," viewers will instead see and hear a duet between Ariana Grande and Christina Aguilera. Joining the two powerhouse vocals are A Great Big World. The singers will be performing a two-song medley entitled "Say Something."

Other big shot Hollywood stars set to be present at the event include Katy Perry. AMA's producer, Larry Klein, made the announcement early this week that "Roar" singer Perry would open the show. Of course, none other than "We Can't Stop" singer, Miley Cyrus is set to close the curtains. Klein however, refused to share who among the acts would be accompanied by a grand 50-piece orchestra.

"The show goes from intimacy to gigantic production numbers," said Klein in a press conference as reported by Billboard.

The American Music Awards will be held at the Nokia Theatre with a live telecast on ABC. A few other line up for the event include TLC, Justin Timberlake, Jennifer Lopez, Lady Gaga, One Direction, Imagine Dragons, Florida Georgia Line, Macklemore and Ryan Lewis plus a few more others. Pitbull is also set to present at the event with his new single to be sung opposite Ke$ha.

As for Ariana Grande, the "Sam & Cat" star is certainly pulling off all the stops this year. Aside from a successful debut album release, Grande is set to offer three songs in time for the holidays. Last Tuesday, Grande released her version of "Last Christmas" to which Scooter Braun had praised with the words "bad b*tch." Grande's other song "Right There" is also getting lauded for the urban-pop diva feel.