We are the World 25 for Haiti

The "We Are the World 25 for Haiti" video was officially played during the opening ceremonies of the XXI Winter Olympic Games.

Stars from Justin Bieber, Mary J. Blige, Jennifer Hudson, Celine Dione, Lil Wayne, Pink, Miley Cyrus, Nick Jonas and dozens more stars gather altogether in a remake of a Michael Jackson "We are the world" song for cause.

Watch the video below.