There was no official announcement of Hot Dog's withdrawal and he also became a member of the group in "Brother of the Thorns", saying that he withdrew is false news.

On the night of October 29, 2021, the 133 days of "Thorny Brother" finally ushered in the night of the reunion. In the unanimous call of the audience, Chen Xiaochun, who ranked first in total personal favorites, and Lee Seung-hyun, who ranked second, went to the X-Fire position, while Zhang Jin became the first generation of the Rolling Family X-Leader.

The final list of the formed group was Chen Xiaochun, Lee Seung-hyun, Zhang Chilam, Zhang Qi, Yan Seung-xu, Huang Guanzhong, Zhang Jin, Lin Zhihyun, Hotdog, Ouyang Jing, Zhao Wenzhuo, Liu Jia, Zhou Yan, Gao Hanyu, Xie Tianhua, Bai Juchang, Zhang Yunlong.

Hotdog's personal history

MCHotdog, born April 10, 1978 in Taipei, Taiwan, China, is a Chinese Taiwanese rapper and singer, who attended Taipei Jianguo High School Supplementary School and graduated from the Department of Mass Communication at Fu Jen Catholic University in Taiwan.

In 2000, he was signed to Magic Rock Records' "Big Circus" music studio.

In 2001, he released four consecutive EPs.

In 2015, he announced the launch of the "Brothers in Color" global tour with Zhang Zhenyue and MJ116.

May 2016, participated in the production of the movie "Warcraft" Chinese promotional song "WeWillRule backwater".

In 2017, MCHotdog participated in the recording of China Hip Hop as a mentor.

In 2021, MCHotdog participated in the panoramic music competition program "Thorny Brother", and eventually joined the "Rolling Singing Family".