04/03/2014 10:04 EDT | Updated 04/03/2014 10:59 EDT

Kate Upton Reigns Supreme At 'The Other Woman' Premiere

Kate Upton's on a fashion whirlwind and she's not slowing down anytime soon!

The Sports Illustrated Swimsuit beauty/budding movie star attended the London premiere of "The Other Woman" on Wednesday looking as if she just stepped out of an ad for couture.

After we adjusted our eyes to make sure we were really seeing Upton (who is known mostly for her scantily clad bikini pics), we gave her a high-five over our computer screens because the 21-year-old looked stunning.

Wearing a black WilliamVintage dress, which featured a flared skirt, an asymmetric neckline and a waist-cinching bodice, the Vogue cover gal was the epitome of retro chic.

A super high bouffant, nude pumps and statement earrings rounded out the ensemble, putting her on par with red carpet maven and "Other Woman" co-star Cameron Diaz, who rocked a sexy leather dress.

The day before, Kate went Old Hollywood with a strapless white number and a chic faux bob.

With the high fashion world conquered, it's only natural for Kate to become the next red carpet queen.

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