Try to catch a deluge from a melting cap

The line-up for the Australian leg of Live Earth has been formally announced - no Midnight Oil, which may be a surprise:

CROWDED HOUSE
JACK JOHNSON
WOLFMOTHER
JOHN BUTLER TRIO
MISSY HIGGINS
ESKIMO JOE
SNEAKY SOUND SYSTEM
PAUL KELLY
GHOSTWRITERS
TONI COLLETTE & THE FINISH
BLUE KING BROWN

It's not... well, exactly glittering, is it? Perhaps they're holding back some surprises.