The 'Call It Whatever' singer stole the show while stepping out at the Shrine Auditorium in Los Angeles for the ceremony, where she rubbed shoulders with the likes of Kim Kardashian West, Kendall and Kylie Jenner and Selena Gomez.
Never one to disappoint with her wardrobe choices, Bella wore a prom-style dress by Candie's with a strapless sweetheart neckline and a flattering nipped-in waist. Her gorgeous frock also featured a flared skirt and an oversized blue flower print, along with a mesh panel which ran down the centre of her chest.
She kept the rest of her look low-key, adding a pair of blue pointed courts plus a dainty silver necklace.
Her fiery tresses looked as fab as ever tonged into loose Hollywood curls, and she decorated her chocolate peepers with bronze shimmery shadow while painting her pout a fuss-free nude hue.
And later that night Bella had all eyes on her as she took to the stage to present the Candie's Choice Style Icon award to winner Zendaya.
Clearly very proud of her pal, Bella tweeted: "LOVED presenting the @Candiesbrand Choice Style Icon award to Zendaya my boo of all time <3 HER! @zendaya."
What do you think of Bella's dress? Let us know by commenting below as the best comment across the site each week wins £50!
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Watch Bella's video for 'Call It Whatever' below: