Countless moms, dads, grandmothers and grandpas make sacrifices every year for the young women in their lives with one gesture: taking them to a Taylor Swift concert. But Swift is appealing to all ages with the surprise guests on her 1989 tour, and one grandmother got the shock of her life when she saw who had invited to the stage in Nashville.

A video surfaced this week of a grandmother at the second concert in Swift’s home base of Music City, showing the moment the superstar unveiled one of her most special guests: Mick Jagger of the Rolling Stones (watch here). It turns out the star of the video had been wanting to see the Stones for years, but recently had to miss her opportunity.

"My mom has had a lifelong dream of going to a Stones concert, but due to a serious health issue this past year she missed their tour. It was upsetting to her and a big disappointment,” the caption on YouTube says.

The 72-year-old had accompanied her daughter and granddaughter to the Taylor Swift show, knowing nothing of what she would get to see that night. When Jagger steps on stage, the woman completely loses composure, shouting excitedly “Oh my god!” over and over again.

Swift posted the video a couple of days after the performance, explaining that reactions like these are the reason for her love of bringing surprise guests.

It’s probably safe to say Swift gained one more fan that night.

The 1989 World Tour continues through December, and Swift has focused mainly on the shows, though her most recent single “Wildest Dreams” has been all over the radio, not to mention the success of its cinematic music video. She’s also been singing the praises of alt-rocker Ryan Adams’ cover album of her entire 1989 record, which released earlier this month.

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