The hit-making record producer Pharrell Williams, the wizard behind the beats of everybody from Ludacris to Britney, promises it will be "the biggest party on Earth." How big?
At the news conference Thursday announcing this summer's ambitious "Live Earth" concerts -- designed as an exercise in "mass persuasion" about threats of global warming -- Al Gore described his vision: a 24-hour musical extravaganza across seven continents, featuring as many as 150 of the world's top recording artists, introduced by an army of "celebrities and thought leaders" (think: Cameron Diaz and Richard Branson), playing before a total live audience of a million people, and reaching 2 billion more via television, radio and the Internet on July 7.
