Idol group Shinhwa revealed the process of how they chose their new concept.

June 3, an episode of the tvN show "Baek Ji Yeon's People Inside" featured the idol group Shinhwa to speak about their 15 year history in the music industry.

During the show, Eric stated, "We get asked very often about how hard it is to do interviews because of our age. Instead of trying to do everything we did in our 20s, we wanted to show our fans an image that matches our age, the 30s."

Eric continued, "We thought this song would be able to express our sexiness. There is a specific sexiness that seems appropriate for certain ages and we wanted to show our fans something that was fitting for our age. I think we all agreed on that aspect. We can be sexy without taking our clothes off."