These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Big Lipped Alligator Moment: "Expressing Yourself" features gigantic dancing dresses. No people, just dresses. It's supposed to be unrealistic, but that doesn't alleviate the weirdness very much.
Some performances of "Merry Christmas, Margaret Thatcher" feature a giant, puppeteer-esque INFLATABLE Maggie Thatcher looming over the stage/audience like a Macy's Thanksgiving Day Parade balloon from Hell. She is nightmarish, captivating, horrifying... and never, ever mentioned again. (This Troper hoped fervently to see her again at Curtain Call... oh well. Missed Moment of Awesome, perhaps?)