O'Reilly agrees to join arch-foe Clooney

American newsman Bill O'Reilly has accepted George Clooney's offer to join the presenters at this weekend's tsunami relief telethon after a fiery war of words between the pair.

O'Reilly upset Clooney last week when he questioned the organisation of the televised charity event, prompting the movie star to fire off a nasty letter to the Fox anchorman.