Do you remember your favorite song from when you were a teen?  Do you remember hovering your finger over the pause button on your cassette player so that when your favorite song came on the radio you could record it and as soon as you knew it was recording, you’d pick up your hairbrush and sing into it like you were a rock star? Me too.

I’m guessing that Taylor Swift is a little too young to remember recording songs onto cassette off the radio, but she did have a favorite song and did sing into a hairbrush and on Saturday night she got to bring the woman who sang her favorite song onto the stage with her. Here’s how it went down: