Two of the biggest names performing at the show are Miley Cyrus and Camila Cabello. Cyrus will sing her new single "Malibu," and Cabello will be making one of her first post-Fifth Harmony solo appearances.
The night will also see the return of two of the world's most celebrated divas: Celine Dion and Cher are both performing, for two iconic reasons.
Cher is set to receive the Icon Award and will perform her song "Believe." Even more impressive? This is Cher's first award-show performance in 15 years.
"I'm honored to receive the 2017 Billboard Music Awards Icon Award and take the stage to celebrate my love of music with my fans," Cher told E! News about the honor.
Catch all the performances when the Billboard Music Awards airs live at 8 p.m. Eastern on Sunday on ABC.
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