Taylor Swift has made it a habit on her '1989 World Tour' to welcome at least one big celeb, with seemingly no rhyme or reason to her choices, to the stage every night -- be it Justin Timberlake or Selena Gomez or Chris Rock and Matt LeBlanc together (still ???ing that last one). But over the weekend, she really upped her game during a Nashville stop:
Mick. Mother effing. Jagger. And they sang "(I Can't Get No) Satisfaction"!
WATCH: Taylor Swift Dances to 'Shake It Off' With 7-Year-Old Super Fan
While tweens in the crowd may not have fully appreciated seeing the iconic Rolling Stones frontman live in the flesh, this 72-year-old grandma certainly did. And she had the best reaction ever:
Grandma Rose Marie Fagan is a fan of Taylor, but mostly attended the show with her 10-year-old granddaughter, Stephanie. Her daughter-in-law, Michele, says, “The tickets were purchased a year in advance, not even knowing about special guests.”
“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. She flew to Nashville 2 days in advance to rest up for the big night, we had floor tickets and so she was on her feet much of the time. Needless to say, when Mick came out it was like he walked on stage just for her.”
PHOTOS: Taylor Swift Shares the Stage With Another Legend...Steven Tyler!
“They’re the music I dance to when nobody is watching. I love their music, I always have,” Rose told ET. “I have been lamenting [missing the Rolling Stones concert]. Anybody who is a friend or family member has listened to me say, ‘The one thing on my bucket list still is to see The Rolling Stones. I hope they go back on tour. I’d go anywhere in the world to see them now.’ I go on and on.”
Of the moment she realized she was finally seeing Jagger, she recalls, “It was like, ‘Why is he here?’ It’s Mick Jagger, Nashville, Taylor Swift audience. It’s like, does that go together to you?! It’s like an oxymoron,” she laughed. “Why is he here? He’s here for me! It’s divine. It’s just magic. This whole thing happened for me.”
"I’ve seen so much footage of the old Elvis tapes, the Beatles, and these girls screaming and pulling their hair out and fainting. I get it," she concluded. "I had that experience for the first time in my life, where you’re just so overwhelmed with joy and excitement. It was just one of the best memories of my whole, entire life."
The video has even been seen by Taylor herself, who absolutely approved:
Oh my gosh, oh my gosh, oh my gosh.
In other T.Swift news, find out why she -- and everyone else -- is freaking out over Ryan Adams’ 1989 cover album: