A member of the group CD REV said government officials worked with them on the video and helped to promote it on foreign websites, many of which are blocked in China by official censors emboldened by the ruling Communist Party's warnings against foreign "cultural infiltration."
In the song, group members chant that "about THAAD we say no, no, no," a reference to the US Army's missile defense system formally known as Terminal High Altitude Area Defense.
Later in the song, they refer to South Korea, saying, "this time, kid, you're going too far" and "your big brother's annoyed," a nod to China's view of itself as the pre-eminent political and economic power in northeast Asia.
|(Screen captured from YouTube)|
CD REV's Wang Zixin told The Associated Press that the group hopes to rally Chinese worldwide against the deployment of THAAD and demonstrate China's "tough stance" on the issue.
"We would see government reports and comments, but at the same time, we see the whole event from the position of Chinese," Wang said.
The video, viewed more than 300,000 times on Facebook and Twitter by Wednesday, represents the latest example of China's use of non-diplomatic channels to broadcast its displeasure with South Korea.
Last year, there were reports that China had stopped giving approval to performers of Korean pop music, or "K-pop," to play shows in China, on the heels of Seoul signing the agreement to host THAAD. In March, South Korean officials voiced concerns that Beijing was limiting tourism to their country as an unofficial sanction.
South Korean retailer Lotte, which provided the land for the THAAD deployment, has also been boycotted by Chinese customers and seen construction halted on an amusement park it was building in northeastern China.
Such moves underscore a willingness on the part of China's Communist Party leaders to fan the flames of anti-South Korea sentiment, said Korea expert Sung-Yoon Lee of Tufts University in Massachusetts.
"THAAD retaliation is a Chinese government-engineered project," Lee said. "It can be controlled and reversed by Beijing. ... The Chinese public has no interest in the complexities of missile defense systems."