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Jessica Biel and Justin Timberlake will celebrate 10 years this October, and just in time, the actress revealed how the singer proposed to her.

During an appearance on The Late Late Show with James Corden Wednesday, Biel said she and Timberlake were snowboarding during a trip to Montana when he decided to pop the question.

“It was so sweet and so unexpected,” she recalled. “I had no idea it was coming.”

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And the way he did it was certainly memorable.

“We were head to toe [in] snowboarding outfits, hats, gloves, everything,” Biel said, adding that they were standing in waist-high snow.

“And all of a sudden, he gets down onto his knees and just sinks into the snow. And then he looks up and pulls up this ring. It was the most lovely, surprising, hilarious,” she said of Timberlake.

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The famous duo got married on October 19, 2012, in the Italian village of Savelletri de Fasano, Puglia, to which Biel wore a dreamy pink Giambattista Valli gown. Today, the two remain happily married and are parents to sons Silas, 7, and Phineas, 2.

Biel and Timberlake attended the premiere of her new true-crime series, Candy, in Los Angeles earlier this week, and in a red-carpet interview, the actress revealed the secret to their marriage.

“Well, I’ll have to give Justin the credit in this moment for this one thing that he always says to me: ‘We might be married, but we have to keep dating.’ And it’s so true,” Biel told Entertainment Tonight. “You just have to keep making time for each other, and you have to keep making each other a priority. And do the things that you love together.”

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She continued, “It’s not always easy, as we all know, but those touch-point moments make all the hard times palatable.”

This article originally appeared on Harper’s BAZAAR US.