Video clip/song help? ?!

I don't know the name of the song!.But what i do know is that it has 2 Afro woman and they sing in the middle of the street with lots off people around and they are collecting money for another woman who cant apparently can't afford the rent off her apartment!.and a butterfly is also a theme in the video clip!.
So do you guys know which song i'm talking about!?!?!?Www@Enter-QA@Com

---

---