genes of each country to create one perfect group." Cross Gene consists of three South Korean members, two Chinese members, and one Japanese member.

2012

On June 7, the group held their first showcase at the Ax Korea concert hall. They released their first mini-album Timeless: Begins on June 8. Ten days later, a limited edition version of the mini-album was released. Timeless: Begins debuted at number nine on the Gaon weekly albums chart and peaked at number eight the following week.

Cross Gene promoted in Japan as well. During a fan meeting in Japan, Cross Gene confirmed they would star on a Japanese TV show in November and planned to make their debut in the Japanese market in December.

2013

On January 16, Amuse Korea Entertainment uploaded two videos on their YouTubechannel, showing the photo shoot for their Japan debut and a special interview. The company also posted a news entry on their Japanese homepage to introduce the new member Seyoung. He replaced J.G who left Cross Gene to start a career as a solo artist.

On February 27, the music video to their song "Shooting Star," the title track of their Japanese debut single album, was revealed. They performed the song live for the first time during a promotional event for the drama "Big in Japan." The single album was released on March 13. This was followed by the "Crazy" digital single on the May 29.

On May 31, Cross Gene held their first Japanese concert, Cross U, at Shibuya O-East. The members spoke about J.G leaving and the change