XTeen

XTeen (pronounced "ex-teen", short for "Extreme Teens", as well as the "X" representing the 10 members) is a ten member South Korean girl group under Classmate Entertainment. They debuted on April 22nd, 2021 with the mini album X-treme. They are the 2nd "official" multinational group with 4 members from South Korea, 2 from Japan, 2 from China, 1 from Vietnam, and 1 from the Philippines.

2020:
Originally set to debut in November 2020, members Joomi, Yuji, Hyesung, Hinano, and Narumi all appeared during Classmate Festival 2020 celebrations as trainees. Their debut was postponed however, as the company determined they wanted to make the group even more global than labelmate Youth Seven.

2021:
This postponement went on until January 2021, when Classmate announced that the group would debut in April 2021. The name of the group was announced on April 3rd, 2021.

Members

 * Jang Joomi (장주미)
 * Ko Yuji (고유지)
 * Kwon Hyesung (권혜성)
 * Yoshimoto Hinano (吉本陽菜乃) 
 * Matsumura Narumi (松村成美) 
 * Phạm Tiên Tú 
 * Zhang Jiapei (张嘉佩) 
 * Liu Meijun (刘美君) 
 * Rosalina Jane Garcia Reyes 
 * Byun Soori (변수리)

Reality Shows

 * 1) XTEEN Show! (06/10/22 - 07/29/22) (8 eps)