I picked up a mic and thought I would have to put it up her butt for the achievement, but instead it instantly jump scared me with Golden Freddy popping in and out. There is no scene with her it just shows her for a few seconds.
I didn't, I searched up how to get it and all you have to do is go up on the stage, there should be a mic on the left side were you can hold the interact button to get the achievement.
