The Orange Is The New Black fan favourite wore a plunging black suit showing off just the right amount of flesh as she made her way into the awards ceremony at the Mediolanum Forum.
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The eye-catching design was just one of many that Ruby rocked through the star-studded evening she is co-hosting with Ed Sheeran.
Ruby also found time to slip into a strapless ball gown covered in lips, as well as an all leather outfit too.
Her most unusual number was spaghetti-inspired dress, worn to celebrate World Pasta day.
Ellie Goulding, the headline act at the recent AFL Grand Final in Melbourne, also had her cleavage front-and-centre for the red carpet.
The 28-year-old wore a hip-hugging black dress with a daring plunging neckline and thigh-high split.
She also showed off a new hair colour, adding a much more yellow tint to her usual platinum ‘do’.
Justin Bieber caused the biggest stir, as only he can, by high-fiving fans as he strutted down the carpet wearing a dazzling red suit.
American girl band Fifth Harmony weren’t to be out-done, however, as they sang and danced into the auditorium performing their hit Worth It
Check out our picks for best, and wackiest, outfits in our special MTV gallery.
