Crystal Blue-Haired Persuasion/References

Cultural references

 * The title of the episode is a reference to the 1968 song "" by rock band.
 * The song also plays during the crystal dream sequence.
 * The angry remark about in 150 years being out in the street if the trend continues is similar to the phrase says "if (insert current disaster) keeps happening I'll be poor by (insert time period)".
 * Marge said that every time has a cold, Homer thinks it's Marge.
 * FAO Quartz is a reference to the toy store.
 * The book Caring for Crystals has a foreword by Billy Crystal and.
 * Crystal Spirit guide is seen eating a crystal.
 * Stores in the Shelbyville Mall:
 * Banana Republican is a parody of Banana Republic.
 * Foot Clocker is a parody of.
 * H&MM? is a parody of.
 * Truck Nuts R Us is a parody of Toys "R" Us.
 * Homer's book club read The Girl with the Dragon Tattoo.
 * Carl refers to .
 * When Bart remembers who's always been there for him, "" by plays.

Continuity

 * Bart still takes Focusyn. ("Brother's Little Helper")
 * Walter Hotenhoffer appears. ("The Scorpion's Tale")
 * A crystal version of the Spirit guide is seen. ("El Viaje Misterioso de Nuestro Jomer")
 * The scene where Homer throws Bart in the lion fence is shown. ("A Tree Grows in Springfield")
 * Ned Flanders still is a 4th grade teacher. ("Left Behind")