Ariana Grande's performance of "Tattooed Heart" at the 2013 American Music Awards on Sunday night managed to shock the likes of Lady Gaga, who gave the young songstress a standing ovation.

Grande performed the single off her album, "Yours Truly," leading with an a cappella rendition of "Baby I," on the AMAs stage at the Nokia Theatre L.A. Live on Nov. 24. She sang her heart out in a performance MTV News has compared to the Motown vibe of Gladys Knight and the Pips, in front of an audience packed with music greats like Gaga, Justin Timberlake and Taylor Swift.

The 20-year-old was one of the most talked about acts of the night, E! News noted, and the performance earned her applause from the "Do What U Want" signer, as well as Ciara.

She also took home the New Artist of the Year Award.

"Oh my God! I'm so nervous," she said when she took to the stage to accept the honor. "Thank you so much. This is for my fans. I have the most loving and supportive fans in the world, and I love them so much. I'm so nervous ... This is crazy. I love you. Thank you."

Ariana Grande nearly brought the house down at the 2013 American Music Awards!

The young starlet performed an almost acoustic version of her single off of Yours Truly called "Tattooed Heart."

 Armed with just a mic and slinky red sequined gown, Grande channeled Motown in what quickly became the most talked about AMAs moment.

 Grande's powerhouse voice even wowed Lady Gaga and Ciara, who both applauded the singer and gave a standing ovation.

And that wasn't the only highlight of the 20-year-old's evening.