Art Connoisseur caused a major upset when repelling a global challenge to win the Golden Jubilee Stakes at Royal Ascot.
Last season's Coventry Stakes victor bounced back to form in some style to take this major sprint prize at odds of 20-1.
The three-year-old, trained by Michael Bell and ridden by Tom Queally, held the late challenge of American raider Cannonball. Lesson In Humility was a brave third.
South African horse J J The Jet Plane was smartly away and made the running from Duff and Ialysos with the filly Lesson In Humility handy.
However, the Mike de Kock-trained favourite faded out of contention in the final quarter-mile while Hong Kong champion Sacred Kingdom flattered only briefly.
Art Connoisseur got a dream run down the stands rail and burst to the front as Cannonball stayed on strongly for second, just a neck behind.
Lesson In Humility (33-1) ran a big race for Karl Burke, finishing two and a half lengths away in third.
Bell said: 'He was second to Mastercraftsman in Ireland last year after he won the Coventry, then he fractured a cannonbone in the Gimcrack which everyone knew about.
'We ran him in the Free Handicap to see if he would stay a mile for the Guineas. He clearly ran like a sprinter in that race and this has been the target all along.
'I would have been more confident but a month ago he popped a splint and was very sore on it. He swam twice a day for a fortnight, then he came back in and has been cantering for a fortnight.
'He's done three bits of work and Tom came down to ride him work when Jamie (Spencer) got suspended.
'He worked very nicely but this is still a big surprise. I thought he was a boy against men, but he answered every call and Tom gave him a peach of a ride.
'I own a share with Richard Green and we turned down a lot of money for him after the Coventry. I was slightly regretting it over the winter but it now looks the right decision.'
Queally, who was just denied by Bell's Sariska in the Oaks when riding Midday for Henry Cecil, said: 'Jamie got suspended and this makes up for Michael beating us in the Oaks. It's great to be on board and the horse did it very well. I just gave him time, got a split and it was do or die then up the rails.
'He idles in his work and only does as much as he has to, but I gave him a couple of cracks and he knuckled down great. Big races and big winners is what it's all about.'
