"mirror mirror" peaked at number 2 on the weekly gaon digital chart and landed at number 29 for the year-end chart. there was controversy surrounding the dance used as part of the song's television stage performances. during the second chorus, 4minute performed a "spread leg dance". many viewers found the move provocative and too overtly sexual for television. 4minute was not alone in the controversy, as another group, rania, also received the same complaints because of a similar dance move. the "spread leg dance" was later banned by kbs from their show "music bank", and by sbs from their show "inkigayo". due to this problem, 4minute changed their choreography twice.