Who are the people that sang in we are the world 25 for Haiti?

"We Are the World 25 for Haiti" featured a diverse group of artists, including notable names like Justin Bieber, Jay-Z, Lil Wayne, Jennifer Hudson, and Miley Cyrus. The project was a reimagining of the 1985 original "We Are the World," aimed at raising funds for Haiti following the devastating earthquake in January 2010. The collaboration brought together both established and emerging artists across various genres to support humanitarian relief efforts.