Watch Emma Stone Sing Her Heart Out at Taylor Swift's Eras Tour Opener

Emma Stone was in full Swiftie mode at Taylor Swift's Eras Tour opener on March 17. The actor attended the kickoff concert in Glendale, AZ, and was spotted having the time of her life throughout the show. In a now-viral TikTok video shared by a fellow attendee, Stone is seen passionately singing along to Swift's 2008 hit "You Belong With Me," channeling her "Easy A" character Olive Penderghast. Although the clip only lasts a few seconds, Stone's excitement is palpable as she belts out every lyric while jumping up and down. "Emma Stone losing her gd mind over YBWM," the caption read.

The mother of one was seated in the VIP section alongside several of Swift's other famous friends, including the Haim sisters, who starred in her "Bejeweled" music video; Laura Dern, who brought along her two kids, Jaya and Ellery; and Hayley Williams, who opened the concert with her band Paramore.

Swift put on quite the dazzling production for Stone and the more than 70,000 other fans in attendance, performing a whopping 44 songs and executing numerous outfit changes throughout the evening. Her set list featured songs from all 10 of her studio albums, starting with "Miss Americana & the Heartbreak Prince" and ending with "Karma." The Eras Tour marks Swift's first concert series since her 2018 Reputation Stadium Tour, which was immortalized with a corresponding Netflix special.

For those unacquainted with Swift's inner circle, she and Stone have been friends since meeting at the Young Hollywood Awards in 2008. Swift accompanied Stone to the "Easy A" premiere in 2010, and the duo snapped photos together at several events in 2011, including the Vanity Fair Oscars party, Met Gala, and Teen Choice Awards. In a 2020 interview with People, Stone was asked about her favorite Swift song, to which she replied, "That's really, really hard because I like so many of them. That's almost impossible, actually. . . . I really love the song 'August' right now. I was just listening to it earlier today."

Rumors are swirling that Swift may accompany Stone in the "Cruella" sequel, though none of the hearsay has been confirmed by Disney. For now, we'll have to settle for Stone vibing out to "You Belong With Me" like her life depends on it.