ColourPop You Idiots! You Fools! You Imbeciles! is a warm duochrome with a sparkle finish that is limited edition and retails for $10.00. In comparison, Tarte Believe is a cool duochrome with a metallic finish that is limited edition and retails for $28.00.
Tarte Believe is 85% similar — it is more shimmery, cooler.