Concert promoter Harvey Goldsmith staged the two biggest charity gigs in history - Live Aid and Live 8.
But he reckons ''we ain't seen nothing yet,'' to quote the Sunday Mail.
He says pop's greatest acts are ready to do it all again... for the planet.
Elton, U2, Madonna, Paul McCartney, Coldplay and R.E.M. could perform together again to raise awareness of global warming - for Earth Aid.
Harvey stated: "There's no such word in the music business as never. I'm sure there will be another large scale event like Live 8."
"Live 8 only happened because the bands wanted to do it. It wasn't my idea.
The environment could spark off another big show. It's an issue everybody is concerned about.
"I'm certain something is going to happen so I'd like to get involved again."
Harvey's latest project - The Merchants Of Bollywood - opens at the SECC in Glasgow tomorrow and again on November 23-25.
The dance spectacular features the biggest names in Indian cinema.
He recalled: "I first saw the show in Australia and it blew me away.
"It's the story of Bollywood with 48 people on stage and 585 costumes. It's a great night out."