Kevin Pietersen earned England a dramatic victory to piled on the agony for Australia in their NatWest Series meeting at Bristol.
Pietersen hit a stunning 91 not out off just 65 balls – including eight fours and four sixes – to condemn the tourists to their fourth one-day defeat in the past seven days.
England had run into early trouble in their pursuit of a victory total of 253 as Glenn McGrath bowled openers Marcus Trescothick and Andrew Strauss.
But Australia had not reckoned on South African-born Pietersen, who entered the action at 119 four in the 28th over.
Pietersen’s late onslaught, with Jonathan Lewis for support, ensured England cantered home with 15 balls to spare.
Earlier, Steve Harmison returned his best ever one-day international bowling figures as Australia were restricted to 252 for nine in their 50 overs.