The original song was inspired by the September 11 terrorist attacks in New York.
Now the Black Eyed Peas' 2003 smash hit Where Is The Love? is set to be revamped for a new generation.
The hip-hop group has enlisted the help of their celebrity friends - including "millennials" Kendall Jenner, Jaden Smith and Jessie J - to release a new version of the song.
The aim, singer Will.i.am says, is to inspire a new generation of activists after the attacks in Paris, Belgium, Turkey and Orlando, as well as the police shootings of black men and women in the US..
"Everyone was calling on us, like, we need that song again," the 41-year-old entertainer said.
"The millennials are powerful, I don't think they realise just how powerful they are. I hope this song inspires the millennials to go all out, scream from the tallest mountain, care like your freedom depends on it, pay attention like that is at risk."
Will.i.am said the group wrote the 2003 song in response to the 9/11 terror attacks, with the mounting racism making them wonder where the love was.
"My grandma said a prayer and said that we shouldn't stay home and be afraid when you're being called on to do as much healing as you can with the gift that was given to us," he said.
Fergie will join Will.i.am, Apl.De.Ap and Taboo for the new version of the song, while Justin Timberlake, who provided vocals on the original song, will also make a comeback.
Other A-listers who've signed on include Mary J Blige, Nicole Scherzinger, Usher, Jamie Foxx, Diddy, DJ Khaled, Andra Day, Tori Kelly, Ty Dolla $ign and The Game.