[3] On 30 July 2012, Kim Kwang-Soo, Core Contents Media's representative, issued a statement that Ryu Hwa-young would unconditionally terminate her contract and quit T-ara.

Since Hwa-Young's withdrawal was sudden, members Hyo-Min and Eun-Jung who cover of her rap parts, had to read lyrics from staff's sign on stage.

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

[7][8] 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.

Dani portrayed "the blind girl with superpowers" in the music video, she was then replaced by Eun-jung in the second part of the drama version (Sexy Love).

[14] In 2020, Vietnamese singers Trinh Thang Binh and Liz Kim Cuong released a duet titled "Big Difference".