Five men, including one surnamed Li, were apprehended on Wednesday after a woman accused them of raping her.
Police officials demanding anonymity told state media that Li is the son of Li Shuangjiang, dean of the music department of the People's Liberation Army Academy of Arts.
Li Shuangjiang, 74, built his reputation in past decades by singing popular patriotic songs, according to official Xinhua news agency.
The five men are now in criminal custody, the report said.
It is not the first time that junior Li has gotten in trouble.
The teenager spent a year in a juvenile camp for re-education before being released in September 2012, official media reported.