Who was Ryan Gosling's date at last night's Oscars?

The 36-year-old actor — who was nominated for the evening's Best Actor honor for La La Land — made headlines on Sunday, Feb. 26 because of the mystery girl sitting next to him during the award show.

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Turns out, the woman was Ryan's sister, Mandi Gosling!

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Ryan with is sister, Mandi, at the 2017 Oscars.

Before the 89th Academy Awards, many fans wondered if Ryan would bring his love Eva Mendes as his date to the star-studded event. Though Eva, 42, stayed home, Ryan still made the night a family affair by bringing his stunning sibling!

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Ryan and Eva began dating in 2011 after meeting on the set of their film The Place Beyond the Pines. The very private couple — the only red carpet they've ever walked together was back in 2012! — are now parents to two daughters, Esmeralda, 2, and Amada, 9 months.

Though Ryan lost last night's Best Actor Oscar to Casey Affleck — who won for his starring role in the drama Manchester by the Sea — his La La Land co-star Emma Stone did take home the Best Actress honor. Emma, 28, similarly brought her sibling, her brother Spencer Stone, as her date to the 2017 Oscars — so cute!

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Ryan and Emma in La La Land.

This was the father-of-two's second Academy Award nomination. He was previously recognized in 2007 for Best Actor for his role in Half Nelson. He lost that award to Forest Whitaker for The Last King of Scotland.

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More of last evening's winners included Viola Davis for Best Supporting Actress for Fences and Mahershala Ali for Best Supporting Actor for Moonlight. Moonlight additionally made major headlines at the Oscars after La La Land was mistakenly named Best Picture when the Barry Jenkins drama was the real winner. So crazy!

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