The 17-year-old performed during the Grammys show with an acoustic version of her hit song "Royals," clad in a white sleeveless blouse and black pants.
The New Zealand born and raised singer, who's up for multiple awards herself, showed off a new look with her straight hair, instead of her signature curls as she worked the crowd.
Lorde has opened up about her anxiety issues before, saying she's very insecure.
"I get paralyzingly nervous a lot of times, so I tried bravado," she said. "The way I dress and carry myself, a lot of people find intimidating. I think my whole career can be boiled down to the one word I always say in meetings: strength."
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Gallery | Our Favorite 2014 Grammy Moments!