1. Dance is a women's singing group launched by JYP Entertainment on October 2th, 215. It consists of nine members: Lim Na Yeon, Yu Dingyan, Hirai Momo, Sana, Park Zhi-xiao, Myoi Mina, Da-hyeon Kim, Sun Caiying and Chou Tzuyu.

On October 2th, 215, the first extended play "THE STORY BEGINS" was released, which officially debuted.

2. BLACKPINK is a women's singing group launched by YG Entertainment on August 8, 216. It is composed of kim JISOO, JENNIE Kim and Roseanne Park (ROS? ）、LISA? Composed of four members.

On August 8, 216, the first single album "SQUARE ONE" was released and officially debuted.

3. GFRIEND () is a Korean women's singing group launched by Source Music in 215. It consists of six members: So-Jeong Kim, Ye Rin, Eun Ha, Yu Ju Cui, Eun Bi Hwang and Um Ji.

In January, 215, the first extended play "Season of Glass" was released, and then the KBS2 variety show "Music Bank" was officially debuted.

4. Red Velvet is a female singing group launched by SM Entertainment Co., Ltd. in August 214. It was originally composed of Irene, Kang SeulGi, Sun Chenghuan, Park Soo Young and Yeri.

On August 1st, 214, Red Velvet released its first digital single Happiness and officially debuted.

5. MAMAMOO is a women's singing group launched by Rainbowbridge World on June 19th, 214. It consists of four members: Jin Rongxian (Solar/Chanle), Moon Byul E (Moon Byul/Comedy), Jung Whee In (Whee In/Huiren) and An Huizhen (Hwa Sa/Huasha).

on June 18th, 214, the first extended play Hello was released? . On June 19th, he made his official debut in M-Countdown with the title song "Mr. Ambiguity".