Rainbow is a women's group, which was cultivated by DSP company that introduced Crystal Boy, FINKL, SS50 1, KARA and other popular groups for four years. Because there are seven members, it is called rainbow when it is a trainee. Jin Guizhong, a senior at SS50 1, also suggested that the group be named Rainbow, because he thought the name was appropriate and easy to remember. The affiliated company said: "All seven members have undergone long-term training and have profound singing skills. Everyone doesn't feel like a newcomer. They have natural and skilled stage strength, so stay tuned. "

Captain: Jin Zaijing.

Introduction: Jin Zaijing, captain of Rainbow Women's Team, received a four-year training from DSP Company in June 2009. With her pure and soft appearance, she was recognized as a star when she was a trainee before her debut.