See London's Daily Mail, "Oh the irony! The Voice judge Will.i.am turns up to climate change debate... in a huge gas-guzzling helicopter."
And at Telegraph UK, "Will.I.Am attends climate change talk in helicoper" (via Memeorandum):
Musician Will.I.Am has been criticised for arriving at a climate change debate in a private helicopter, producing the same amount of CO2 most people do in a month.
I don't see video of the helicopter landing, but the Black Eyed Peas star tweeted the flight: "Taking off in the hip.hop.copter...i loved tauton...great people..."