Cross Gene (Korean: 크로스진; stylized as CROSS GENE) is a five-member boy group based in South Korea. Signed under Amuse Korea, the group consists of South Korean members: Shin, Sangmin, Yongseok and Seyoung and Japanese member Takuya. They released their debut mini-album "Timeless: Begins" in 2012, which peaked at #8 on the Gaon weekly album chart.
"Timeless: Begins" peaked at #8 on the Gaon album chart in 2012.
The context does not say when in 2012 the album was released, or when the album peaked on the Gaon chart. It's possible that it did not reach #8 until the following year.