Tarte Believe is a cool duochrome with a metallic finish that is limited edition and retails for $28.00. 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 less shimmery, warmer.