The "We Are the World" remake premiered at the Olympic opening ceremonies in Vancouver Friday night.
Justin Bieber, Barbra Streisand, Pink and Kanye West are among the stars who appear in the video, shot less than two weeks ago in Los Angeles. Proceeds from the song will be donated to Haiti relief.
See pics from the We Are the World recording session!
In one touching moment, Janet Jackson sings alongside video of her brother Michael from the original "We Are the World," recorded 25 years ago. (Michael, who died last June, co-wrote the song with Lionel Richie.)
Meanwhile, moods were at times subdued at the opening ceremonies, which was dedicated to Georgian Nodar Kumaritashvili, who died earlier that day when he lost control of his luge and slammed into a metal pole during a practice run.
A touching tribute: stars gone too soon
Athletes from his Eastern European country considered pulling out of the 2010 Olympics, but decided to compete in honor of him. They donned black arm bands when walking into the opening ceremonies.