As previously depicted, Taylor Swift invited Mick Jagger to join her for a duet of "(I Can't Get No) Satisfaction."
This unexpected duet certainly got the crowd on its feet, but let's face it: most in attendance were in their teens. Tragically, many may not have even heard of The Rolling Stones.
But that certainly can't be said of the 72-year old woman featured in this video.
According to the attendee's daughter, who uploaded this footage to the Internet, the woman "had a lifelong dream of going to a Stones concert, but due to a serious health issue this past year, she missed their tour."
So you can imagine her reaction when - stunningly - Jagger actually came out on stage to sing the band's best-known single.
Actually, you don't need to imagine her reaction. You can see it for yourself right here!
(SPOILER ALERT: It's awesome!)