Even before they reached superstardom, Taylor Swift and Emma Stone were already the best of friends. In a 2011 interview with PopSugar (via HuffPost), Swift referred to Stone as her sister. "My friends are amazing and I'm so thankful to have them, [but] the ones that are like sisters to me are Selena Gomez and Emma Stone ... They can predict my thoughts; I've known them for so long it's really cool to have friends that are that close."

According to Stone, the two first linked up at an awards show in the late aughts and have become inseparable since. "We met at the Young Hollywood Awards for Hollywood Life magazine," Stone shared with MTV News. "We met there three years ago, and then I listened to some of her music, and I wrote her an e-mail saying I liked her music, I swear. And then we started talking and hanging out."

What's more interesting is that while Swift and Stone's friendship remained relatively low-key through the years, Stone has reportedly played a big part in the singer's relationship with current beau Joe Alwyn. Daily Mail claimed that the actor had introduced the two to each other when she starred with Alwyn on "The Favourite." What are friends for, right?

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