Milani Luster Light is a warm duochrome with a satin finish that is permanent and retails for $12.99. In comparison, ColourPop You Idiots! You Fools! You Imbeciles! is a warm duochrome with a sparkle finish that is limited edition and retails for $10.00.
ColourPop You Idiots! You Fools! You Imbeciles! is 85% similar — it is more shimmery, lighter, cooler.