Day by Day (EP)

It was announced on June 12, 2012, as a 20-minute music video drama starring the group themselves in a science-fiction setting;[6] reminiscent of the movie Mad Max.

[7] A large amount of work was needed to complete the computer graphics featured in the video, which caused its release to be delayed by 13 hours.

On July 4, the musician held a press conference in which he admitted that the two songs did sound identical at the beginning.

[14] The song ranked among the best-selling singles of the year with nearly 2,150,000 downloads sold in South Korea by the end of 2012.

[15] "Sexy Love" peaked at number three on the Billboard Korea Hot 100 Songs chart and sold nearly 1,550,000 downloads in 2012.