Gracie Abrams just proved her love for Taylor Swift is always close to her heart—literally.

In a new “What’s in My Bag” video for Vogue released June 23, the 25-year-old singer revealed she keeps a Polaroid of herself and Swift from their surprise duet at Wembley Stadium. “Someone gave this to me after our last show in Europe,” she shared, holding up the photo of their performance of “Us.” “I want to frame this when I can.”

Abrams, who opened for Swift on the Eras Tour, called the experience “life-changing,” adding, “Every time I open for her, I watch and learn.”

June 23 was also a milestone night for Swift. Not only did she perform with Abrams, but her boyfriend, Travis Kelce, made his onstage debut at Wembley—carrying her during a playful costume change skit that sent fans into a frenzy. Swift called the moment unforgettable in a heartfelt post the next day.