Stars re-record We Are The World
Kanye West, Jennifer Hudson and Celine Dion were among a host of stars who gathered to re-record the 1985 US charity anthem We Are The World in the same Hollywood recording studio where the original was cut 25 years ago.
Pink, Natalie Cole, the Jonas Brothers, Tony Bennett and Akon were other musical luminaries who stood shoulder to shoulder on risers at Henson Recording studios, singing their hearts out and hoping to help Haiti.
"This one, the enthusiasm, I've never seen anything like it," said Lionel Richie, who wrote the original song with Michael Jackson, and oversaw the new version with music mogul Quincy Jones.
Later, a who's who of rappers, including Snoop Dogg, LL Cool J and Wyclef Jean, recorded an interlude written by Black Eyed Peas frontman and producer will.i.am.
At one point during the session, the musicians broke out into an a cappella version of the pop classic Lean On Me.
True to her diva reputation, Barbra Streisand recorded her solo over and over, completely absorbed in the recording process and stopping only to correct her pitch.
Rapper Lil' Wayne was told he would do Bob Dylan's part in the original song.
"I said, 'Are you kidding?'," he said. He felt blessed to record the song but admitted: "I don't know how to sing."
Some of music's top names, including big Grammy winners Taylor Swift and Beyonce, were unable to make the recording. Janet Jackson, who was out of town, will contribute vocals remotely.