(YouTube link)

This catchy song was born at TEDActive 2010, where attendees were invited to contribute their ideas on what the world needs. The entire production was put together in just four days.

Jill Sobule, John Doe, Sara Watkins, Stuart Johnson, Don Was, Dave Way, Krish Sharma and the amazing team on the John Lennon Educational Tour Bus came together to create write, perform and produce an original song, on-site during the conference. Aaron Koblin served as director and the TEDActive community transformed their ideas into impressive illustrations, with a little help from artist Jansen Yee.

Link -via The World's Fair