Justin Bieber, Alanis Morissette, Demi Lovato, Coldplay and Ariana Grande are among the stars who will take the stage at the American Music Awards (AMAs) today.
The awards show, hosted by Jennifer Lopez, will feature a string of star-studded performances, including a duet from Morissette and Lovato, as well as sets from Gwen Stefani, 5 Seconds Of Summer and The Weeknd and a performance of John Williams's famous Star Wars score from Pentatonix, accompanied by a full symphony orchestra.
Bieber will close the action-packed show, performing a medley of his biggest hits.
Taylor Swift is the most nominated artist at the awards this year, with six nods.
Ed Sheeran and The Weeknd picked up five nominations while Sam Smith, Nicki Minaj and Meghan Trainor scored four.
The AMAs are being held at the Microsoft Theatre in central Los Angeles.