I think you didn't get it clear. Wema said that she was filmed secretly during the birthday party of Diamond Platnumz’s pal Rommy Jones and later they told her that they wanted to use those shooting to feature in the that music but she didn't accept unless they pay her 10 millions. On her refusal featuring feature free in the video they decided to pick those videos from instagram without her consent. Legally she has the right to demand the pay. The laws say that people have very few privacy rights over those things that they do in public. That can be equaled to volenti non fit injuria. But here the case is different.
At the outset, it's important to draw a bright line between photographing a subject for commercial use as opposed to all other uses. Right of publicity law protects subjects against the commercial misappropriation of their likeness. Be careful, industrial filmmakers: videos may count as commercial if they are being used to advertise the company's services or products or promote business for profit gain. You should have a signed authorization from your subject; otherwise, you might be violating his or her right of publicity and can be sued.
Example: You film your neighbor washing his car and use that footage in a television commercial for car wax. You're using your neighbor's image for commercial purposes and must have his written permission to use the footage. So Wema go ahead you have all your legal right