![MTV's "The Hills Live: A Hollywood Ending" Finale Event](https://hips.hearstapps.com/hmg-prod.s3.amazonaws.com/images/gettyimages-the-hills-102884578-1534820959.jpg?crop=1.00xw:0.686xh;0,0.0175xh&resize=320:* "MTV's "The Hills Live: A Hollywood Ending" Finale Event")
Just like she crushed "Hello" last week, Demi Lovato will slay/destroy/do really well when she and Alanis Morrissette perform together at this weekend's American Music Awards.
The duet was announced via tweet Thursday, and while the exact program hasn't been announced yet, Digital Spy reports the pair will commemorate the 20th anniversary of Jagged Little Pill with a rendition of "You Oughta Know."
Lovato and Morrisette join Jennifer Lopez (who's also hosting), Justin Bieber, Ariana Grande, Gwen Stefani, and the Weeknd. Note to all AMA acts: The dress code is braids, beanies, and culturally relevant lyrics.
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![MTV's "The Hills Live: A Hollywood Ending" Finale Event](https://hips.hearstapps.com/hmg-prod.s3.amazonaws.com/images/gettyimages-the-hills-102884578-1534820959.jpg?crop=1.00xw:0.686xh;0,0.0175xh&resize=480:* "MTV's "The Hills Live: A Hollywood Ending" Finale Event")
