In "mirrorball," Taylor Swift speaks about how she is willing to adapt to different situations and show different versions of herself to fit in. She compares herself to a mirrorball, reflecting each person's unique perspective back to them. The chorus repeats multiple times, letting the listener know that she is willing to be whoever they need her to be. When she says, "I can change everything about me to fit in," she means that she can adapt to be who you need her to be during the moment.

The second verse emphasizes how Taylor Swift positions herself to make herself the center of attention, putting herself on "her tallest tiptoes" and "spinning in her highest heels." She is trying to showcase herself to the person she is talking to, shining just for them. She doesn't want to just be a "regular" person, but someone who is unique and stands out. Swift acknowledges that the world is changing rapidly with the line, "I know they said the end is near," but she is still trying to stay afloat by adapting to the changes.

In the bridge, Swift alludes to the chaos and downfall of society. The circus has called off, and the disco has burned down. She is still holding on to the tightrope and trapeze, trying her best to make someone happy. She is still a believer even though things are not going well. All she can do is try, try, try; even though she's not a natural performer, she's still putting herself out there, hoping to make a connection with someone.

Overall, "mirrorball" is a song about Swift's willingness to change and her desire to connect with someone. She is willing to be whoever, and she sees herself as a mirrorball, reflecting the people around her. The song's title is fitting because the lyrics demonstrate how Taylor Swift shifts her personality and becomes different versions of herself to fit in.