NARS Let's Go Crazy is a cool fuchsia with a semi-matte finish that is permanent and retails for $27.00. In comparison, MAC Viva Glam Miley Cyrus is a cool fuchsia with a satin finish that is limited edition and retails for $19.00.
MAC Viva Glam Miley Cyrus is 90% similar — it is lighter, glossier.