Steve Martin, Tom Hanks and Eric Idle have formed a supertrio for the upcoming EARTH TO AMERICA comedy telethon.

The threesome will perform spoof songs and crack jokes during the show, which airs in America on Sunday night (20NOV05).

Organised by Seinfeld co-creator Larry David and his wife LAURIE, the show, which was taped on Thursday (17NOV05), is aimed at raising awareness for environmental issues.

Appearing alongside David, Hanks, Martin and Idle were LEONARDO DiCAPRIO, Ben Stiller, Chris Rock and Will Ferrell, who will portray a clueless PRESIDENT George W Bush in pre-taped skits.