"With the concept of taking on both the bright and strong 'Red' and the mature and soft 'Velvet' and the narrative of 'Unpredictable adult fairytales', [Red Velvet] was introduced at the time of debut as SM's pursuit for a midpoint of Girls' Generation and f(x). This means that they aimed for the ideal balance between SM groups by combining the popular appeal of Girls' Generation with the four-dimensional concept of f(x), which can be best understood by listening to albums like 'Perfect Velvet' which is talked about as the group's representative album."