Quincy Jones Tears Up Hearing Michael's Music

Quincy Jones – the prodigious producer behind some of Michael Jackson’s biggest hits – grew emotional at a London event on Saturday hosted by Will.i.am as club night turned into a tribute to the late singer.

“He got very upset when Michael’s music came on – at one point his head was in his hands,” a patron of Club W in Wandsworth tells PEOPLE. The club had booked the Black Eyed Peas singer to deejay and perform with his band – which was minus Fergie.

Quincy Jones: Nicole Richie Is 'Caught Up in Hoopla'

Music giant Quincy Jones hasn’t spoken to his friend Lionel Richie’s daughter Nicole since her arrest Monday morning, but he blames her troubles on the pressures of being in the public eye.

“You get caught up in the peer pressure and the hoopla – it’s a media frenzy. It’s insane. Success doesn’t help,” Jones, 73, told PEOPLE Thursday at a benefit performance of the Debbie Allen Dance Academy’s new musical, The Bayou Legend, in Los Angeles. “Processing success is a major, major, major process.”

Oprah, Norah Pitch In for the 'Future'

This Sunday in Rome, music giant Quincy Jones will present “We Are the Future,” a free-to-the public charity concert intended to bring attention on the plight of children in such distressed and war-torn areas as Ethiopia, Eritrea, Sierra Leone, Afghanistan, Rwanda and the West Bank.

Among those expected, as both presenters and performers, are Angelina Jolie, Naomi Campbell, Chris Tucker, Serena Williams, Oprah Winfrey, Andrea Bocelli, the cast of Cirque du Soleil, Eve, Josh Groban, Norah Jones and Alicia Keys, PEOPLE reports.