In writing,there is a term called "a hat on a hat." What that means is putting too many things unnecessarily on top of each other, thus diminishing the effects of whatever those things might be. Andrew Lloyd Webber's Starlight Express is essentially 72 hats stacked up wearing a trenchcoat.
You may be familiar with Webber's utterly bananapants bonkers musical merely as the one where the actors are all on roller skates. I must inform you, and that detail is frankly the least ridiculous element of this display.
Source: blastr.com