And, the 21-year-old singer was a total knock out in a black halter-neck, floor-length, figure-hugging Calvin Klein Collection dress, which she teamed with gold stilettos and accessories.
The beaming smiles? Definitely down to the fact her beau Calvin Harris was with her at the star-studded awards ceremony.
Reets couldn't refrain from sharing an Instagram pic of her and her man with Katy Perry and Ellie Goulding:
Take a look through this gallery to see who got all glammed up for the MTV EMA's 2013:
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