Before performing her newest single, the "Same Old Love" singer sparkles with her purple ensemble.
OMGigi! The supermodel rocks a sleek cropped 'do for the red carpet. Her short bob was styled by Bryce Scarlett using Matrix StyleLink.
With two nominations ahead of the star-studded evening, the boys of 1D already look like winners.
The queen of country is looking exceptionally stunning in a sequin Elie Madi mini dress and flowing cape styled by Marina Toybina.
The comeback kid himself pays homage to one of his own musical inspirations in a graphic tee and ripped jeans.
Sister act! The youngest sisters of the Jenner-Kardashian clan sport their own unique versions of the LBD.
All eyes are on the "Used to Love You" songstress in her Yousef Al-Jasmi gown as she prepares to take the stage.
At the end of the evening, this former boy-bander turned solo artist might be going home with an AMA for Favorite Male Artist-Pop/Rock.
The "On My Mind" singer shows some skin in a one-shouldered mini dress with leather accents.
Judging from the singer's dramatic red carpet ensemble from Lorena Sarbu, it's safe to say Demi's AMAs performance will be nothing short of electric!
The Shake It Up beauty adds a splash of color to Sunday's red carpet.
Strike a pose! The blond bombshell struts her stuff in a black lace dress and strappy heels.
Shut. It. Down. The singer looks absolutely flawless in this floor length beaded number.
The multi-talented singer has never looked better in a glamorous mini dress and voluminous waves.
The rapper shows off his numerous, glittering rings while sporting a navy blue suit.
We are so not worthy. The Vampire Diaries star is all smiles in a white two-piece ensemble from Zuhair Murad with bright, floral accents.
Talk about fierce and fabulous. The brunette beauty makes it all look too easy ahead of one music's biggest evenings. Her jumpsuit is from Zuhair Murad.
Wowza! Julianne is quite the show stopper in a bold, geometric-inspired gown.
Joe Jonas and the rest of his pop band definitely coordinated their AMAs looks!
The "See You Again" rapper rocks a cool pair of shades on the carpet.
Meghan is all about that bass in a glamorous Michael Costello black gown and cascading curls.
This Pretty Little Liar looks all too chic in an emerald Max Azria Atelier suit and matching pumps.
Calum Hood, Luke Hemmings and the guys look so perfect standing there at the Microsoft Theatre.
The Sports Illustrated cover girl stuns in a silver mesh gown with some leg to boot!