As a teen, Marge had her hair long to at waist length which she always wore down, but got the idea to wear it in her trademark beehive for senior prom in the episode "The Way We Was". In the Shary Bobbins episode, her hair is shown close to her knees, meaning that a lot of hair would be needed to create her tall beehive. Marge has admitted that her hair is not really blue but is, in fact, gray. It was revealed by Homer in "Secrets of a Successful Marriage" that Marge dyes her hair with blue dye #56; ""She’s been gray as a mule since she was seventeen."" It is shown in the episode "Fear of Flying" that Marge's blue hair goes back to when she was a small child, so this color choice may ave been intended to match her original color. Because of her unusually large hairstyle, her height is reported to be 8'6", as noted by Apu in the episode "Marge in Chains". In "The Way We Weren't", her hair was blue before she met Homer and was dark at one time because of Marge ironing a piece of her hair for a long time. In "The Simpsons" Season Four DVD commentary, Matt Groening states that the original idea behind Marge's hair was to hide large rabbit ears. The gag was intended to be revealed in the final episode of the series, but was cancelled early on because of its irregularity.