Los Angeles: Sam Smith and 5 Seconds of Summer will perform at the American Music Awards.
The two nominees will take to the stage along with Mary J Blige at the November ceremony, dick clark productions has announced, reported Ace Showbiz.
Smith and 5 Seconds of Summer are nominated against one another in the Kohl's New Artist of the Year category, which also includes Iggy Azalea, Meghan Trainor and Bastille.
Blige is competing with Beyonce and Jhene Aiko for the Favourite Soul/R&B Female Artist Award. It has already been announced that Charli XCX and Pitbull will be performing at the American Music Awards.
Pitbull is hosting the ceremony as well, with ABC airing the awards show on November 23 from Los Angeles.