David Willey took advantage of a move up to the top of England's batting order to hit 34 off one over.
The Yorkshire all-rounder hit five sixes and a boundary off one Nathan Lyon over to help England cruise to victory over a Prime Minister's XI in their T20 warm-up.
I'm just honoured to wear the shirt and, whatever role, I try to do the best I can.David Willey
With a T20 tri-series against Australia and New Zealand to come, England, inspired by Willey had no problem in Canberra.
The hosts made 136-8 off their 20 overs, Willey taking three wickets. Then his batting took over as he made the most of a move up the order.
He opened with James Vince and scored 79 off 36 balls with his 34, the most by anyone representing England in a single over.
The tourists won by eight wickets in just 12.4 overs to prepare for the tri-series which begins on Saturday.
Most of the attention after the match was on Willey, who has opened for Yorkshire in limited overs matches before but has never batted higher than seven for England.
Despite his innings he was unsure whether he will remain high up the order once Jason Roy and Alex Hales return to the side.
He said: "I got a chance at the top of the order with a couple of niggles and I had nothing to lose.
"I went out with a bit of a free rein and managed to clear the ropes a few times.
"I think I'll be sliding back down to nine or 10 for the first game, that was my one chance. I don't think I can walk in there and say I should be batting higher up the order. I do that job back home and my job with England is different.
"I'm just honoured to wear the shirt and, whatever role, I try to do the best I can."
Australia are 1/2 to win Saturday's first game in the series with New Zealand priced at 13/8.
David Warner is 11/4 to be Australia's best batsman while Kane Richardson is 7/2 to be their best bowler.
England play Australia in Hobart on Wednesday in their first game in the series.
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