The two will take the stage together during Sunday's ceremony.

Alanis Morissette and Demi Lovato will perform together at the American Music Awards on Sunday.

The collaboration was announced by Twitter Music, showing off the platform's new emojis with a comic image for Morissette that shows up with the hashtag #AlanisAMAs.

No word yet on what Morissette and Lovato might perform.

They join a long list of previously announced performers that includes host and performer, Jennifer Lopez, as well as sets from Justin Bieber, Ariana Grande, Coldplay, Gwen Stefani, 5 Seconds of Summer, The Weeknd and a Star Wars performance from Pentatonix with a full symphony orchestra. 

Don't miss a performance at the #AMAs by @Alanis with @ddlovato and try out #AlanisAMAs for a special emoji! pic.twitter.com/YtmfLwFHBF

— Twitter Music (@TwitterMusic) November 19, 2015

This article originally appeared on Billboard.com.