[1] The single was certified as Gold for selling over 100,000 physical copies by the Recording Industry Association of Japan (RIAJ).

"[5] It was met with many positive reviews and a representative of production company Danal even commented, "Kara's popularity in Japan exceeds anything imaginable.

During the filming, it was reported that member Seungyeon cried a lot after being asked by the staff to shed a tear during an individual scene but she ended up sobbing because she became overwhelmed by her emotion.

In this version, the group are dressed as cheerleaders and marathon runners, helping to promote the popular Japan carrier KDDI's "au Santa's Challenge"(which is centered on the “Run & Walk” campaign).

[11][12] Following the release of the group's fourth mini-album back in South Korea, a Korean version of the single was used as the title track for the album.