ColourPop Piece of Me is a warm mauve with a pearl finish that is limited edition and retails for $4.50. In comparison, LORAC Dance 'Til Dawn Eyeshadow #6 is a warm purple with a frost finish that is limited edition and retails for $19.00.
LORAC Dance 'Til Dawn Eyeshadow #6 is 90% similar — it is more shimmery, darker.