South Korean pop star Yoon Mi-rae is threatening Sony Pictures Entertainment with legal action, according to the South Korean news agency Yonhap.
It says her label Feel Ghood claims one of her songs was used in the film The Interview without permission.
The Interview is a comedy about the assassination attempt of Kim Jong-un.
The song is said to have been used in a scene in which the actor playing the North Korean leader drinks and plays billiards with women who are wearing underwear.
The Interview had its launch cancelled after a major cyber attack at the hands of a group calling itself the Guardians of Peace.
The hackers threatened to carry out a terrorist attack on cinemas that showed the film on its scheduled release date of Christmas Day.
The US accused the North Koreans of being behind the hack, something the country denies.
After many cinemas pulled out, Sony cancelled the release but confirmed on Christmas eve that it would be streamed online.
The film is also being shown at some independent US cinemas.
Newsbeat is waiting for a response from both Sony Pictures Entertainment and Feel Ghood.
Source: BBC