The reaction was incredible. "The prisoners absolutely loved it, absolutely loved it, they kept asking for more," Osho-Williams said.
Women detainees also feature in the video. They are seen cheering on while Star Zee sings, but wear masks over their faces to hide their identity.
Former detainee wishes the song had been available earlier
Former detainees are hoping this video and song will help other vulnerable women in their dealings with Sierra Leone's legal system.
One woman who declined to be identified explained that she was accused of murdering her boyfriend, when in fact he died in an accident. They had been playing around and he accidentally fell on a pair of scissors. He was taken to hospital but no doctors were around to save him and he bled to death. She was sent to prison for a year and a half. With the help of Advocaid, she was eventually proven innocent and released. She says she would have welcomed a song like "Nar Yu Right" at the time of her arrest so that she could have been more aware of her rights.
Osho-Williams says that many women Advocaid helps landed in jail after having defended themselves against domestic violence.
"When you hear some of these stories about these women, a lot of them are victims of domestic violence, a lot of them are victims of gender-based violence. It's as a result of retaliating or self-defense that they become perpetrators, get into conflict with the law," Osho-Williams said.
Educating men about gender-based violence
The Sierra Leone government says it is aware of the problem of domestic violence and is looking to educate men in its prevention.
Charles Vandi is the director of Gender Affairs at the Ministry of Social Welfare, Gender and Children's Affairs. He says a new program called Fine Sierra Leone works at reaching out to men and boys across the country.
"For instance, if you get to these men and boys who are the likely source of gender-based violence, you need to educate them about it. What are the forms, types, consequences, effects of gender-based violence? Then they realize and figure, 'oh, I am in that bracket,'" said Vandi.
Nar Yu Right is available on iTunes and Amazon and a share of the proceeds will go to Advocaid.