Meanwhile, her older sibling opted for a slightly more conservative black dress, highlighting her model pins as she waltzed past photographers.
The sisters' pal Selena Gomez also turned heads when she arrived at the star-studded bash. The Same Old Love songstress turned heads in a glittering ruby dress as she strutted down the red carpet at the Microsoft Theater in Los Angeles.
With her glossy brunette locks worn resting on her bare back, she completed her sequined mid-length frock with black ankle-strap heels.
Meanwhile, Gigi Hadid also made sure she was the centre of attention when she rolled up solo in a gorgeous white skirt and revealing cut-out white top.
The model left little to the imagination as she showed off her killer abs, a very lean leg and plenty of cleavage as she posed for pictures.
She also used the red carpet appearance to début a brand new shorter sleek hair ‘do, though she hinted that it wasn't there to stay while chatting to E! host Giuliana Rancic.
Elsewhere, Brooklyn Beckham's ex Chloe Grace Moretz also looked striking when she arrived in an elegant LBD.
But despite all the fierce competition, the best dressed of the nigh has to go everybody's favourite Australian actress, Rebel Wilson.
While her shimmering silver may not be the most traditional awards gown, the star designed the dress herself and that has to be applauded.
Well done, Rebel!