Sam Smith, 5 Seconds Of Summer, Mary J. Blige To Perform At 2014 American Music Awards

Breakthrough newcomers Sam Smith and 5 Seconds of Summer will take the stage at the 2014 American Music Awards.

Dick Clark Productions announced Thursday that Mary J. Blige will join the British pop crooner and Australian boy band at the Nov. 23 event at Nokia Theatre L.A. Live. It will air live on ABC.

Smith and 5SOS will compete for new artist of the year.

PHOTOS: Gay & Lesbian Hollywood

Iggy Azalea is the leading nominee at the AMAs with six. John Legend, Katy Perry and Pharrell Williams each have five nominations. Lorde is up for four honors at the fan-voted show.

Those acts are all nominated for artist of the year, competing with Beyonce, Luke Bryan, Eminem, Imagine Dragons and One Direction.

Pitbull will host the show and perform.