The Aussie actress, who played host for the evening, grabbed the star-studded crowd’s attention by revealing her faux double nip-slip as she made a speech about body confidence.
Sporting unusually large fake nipples during the humorous speech, the 27-year-old showed she had plenty of confidence as she paraded around in several tight costumes.
Initially teasing the audience wearing a pink onesie, Rebel then unzipped the outfit to reveal a bustier top and skintight leggings that left little to the imagination.
Switching between her ripped nipple dress and dominatrix-style get-up, the Bridesmaids star appeared to enjoy her hosting duties at Sony Pictures Studios in Culver City, California, on Sunday.
Later in the evening, Rebel stepped on stage to accept two awards of her own.
The rising star accepted the breakthrough performance honour for her turn in Pitch Perfect.
While collecting the trophy, she confessed: ‘I only do acting for these awards – and for cash money.’
She also joined the cast of Pitch Perfect in receiving a golden popcorn for best musical moment.
