The Confident singer looked like a Hollywood siren as she made her debut on the Microsoft Centre's red carpet clad in this stunning, floor-length vintage gown which was splashed with black, gold and copper coloured sequins.
We're in love with the subtle train!
Demi stole the show away from Keeping up with The Kardashians stars Kendall and Kylie Jenner when it came to her hair and make-up which made her look every inch the vixen.
The songstress ditched the beachy tousles and tight top-knots that everyone else was sporting during the evening and went all 20s on us with these amazing Great Gatsby-inspired finger waves that lent her ultra glossy raven lob (long bob, dontcha know) an eye-popping retro dimension.
Demi's hair wasn't the only thing that grabbed our attention, however, as the singing sensation experimented with a vampy ombre lip and kohl-rimmed eyes which popped against her beautifully flushed complexion.
We're finding it hard to tear our eyes away fro her!
After rubbing shoulders with Ellie Goulding, Selena Gomez and Christina Milian on the star-studded red carpet, the American superstar took to the stage to perform hits from her brand new album and was joined by the legendary Alanis Morisette for a duet of You Oughtta Know.
For exclusive competitions and amazing prizes visit Reveal's Facebook page NOW!