Taylor Swift
The Grammy winner glimmered in a sequin black jumpsuit.
Demi Lovato
Talk about confident! The songstress looked fierce in a black and white jumpsuit.
Selena Gomez
The "Hands to Myself" singer looked fashion forward in an orange jumpsuit with cutouts at the waist.
Iggy Azalea
The rapper opts for dark lipstick and a sporty, casual look while showcasing her blingtastic engagement ring.
Calvin Harris
The producer looked handsome in a gray suit jacket.
Zendaya
The "Replay" songstress looked red hot in a red two piece suit with black and white trim.
Wiz Khalifa
The rapper opted for a pink button down and ripped jeans for the night of awards.
Meghan Trainor
The "No" singer dazzled the iHeartRadio red carpet in a black sequin cocktail dress and fringe heels.
Cody Simpson
The triple threat kept his fashion simple in leather pants and a denim button down.
Keke Palmer
The singer sparkled in a blue sequin mini dress.
AJ McLean
The Backstreet Boys singer looked laid back in layers.
Jason Derulo
The award show's host sported a Michael Jackson-inspired red jacket.
Kat Graham
The actress looked tango-inspired in a ruffled crop top and black flare pants.
Diplo
The producer and DJ wears a slim grey suit.
Cheryl Burke
The ballroom dance pro sported a white hot jumpsuit with sailor buttons.
Chris Brown
The "Zero" crooner sported a sleek white ensemble on the iHeartRadio red carpet.
Serayah McNeill
The actress dazzles in mini beige dress with gold and coral accents.
Hozier
The singer looked Johnny Cash-inspired in an all black ensemble.
Laura Marano
The Disney star stood out in the crowd in a little black dress with colorful embroidery.
Sibley Scoles
The E! News co-host looked fashion forward in a sleek black jumpsuit.
Karrueche Tran
The smiling actress gave the iHeartRadio Music Awards a colorful punch in an orange leather dress with whimsical shoulder details.