The result is a hilarious video conversation with a group of New Zealand schoolchildren--they help drum up lyrics for the song--and a rousing anthem inspired by "We Are the World."
All proceeds "Feel Inside (And Stuff Like That)," now available on iTunes, will go to the Red Nose Day charity.
Calling themselves "New Zealand's fourth most popular guitar-based, digi-bongo, a cappella, rap-funk-comedy folk duo," Flight of the Conchords performed and starred in their own self-titled HBO television series from 2007 to 2009.
Since then, Bret McKenzie has won an Academy Award for a song on "The Muppets" soundtrack, "Man or Muppet?" Jemaine Clement has appeared in "Dinner for Schmucks" and "Men in Black 3."
Here's the extended version of the video: