An unwanted slip. Lorde walked the red carpet at the 2016 Met Gala in a tiered Valentino gown on Monday night, looking glam and straight-faced.

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The 19-year-old New Zealander had a cast on her left arm and suffered an unfortunate mishap while posing for photographers. In one profile shot, the singer's breast was overexposed.

Fortunately she covered it right up and continued into the futuristic, technology-themed event.

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Lorde’s bestie, Taylor Swift, was this year’s gala co-chair. Many other members of Taylor’s squad, including Selena Gomez, Karlie Kloss, Gigi Hadid, and the ladies of Haim also attended the gala.

Prior to the ball, Lorde tweeted, “faint sound on the upper east side this morning attributed to hundreds of pounds of body hair being waxed, shaved and trimmed #MetGala2016."