Dettori and Authorized finished five lengths clear

The Peter Chapple-Hyam-trained colt hit the front two furlongs out and finished five lengths clear to give Dettori his first win in 15 attempts.

"It was like the whole world was shouting over the last 100 yards," Dettori told BBC Sport. "I was full of emotion. I had to pinch myself."

Eagle Mountain was second, with Aqualeem third out of the 17 runners.

Interview: Derby winner Frankie Dettori

Chapple-Hyam celebrated his second win in the Derby, after Dr Devious triumphed in 1992.

"He's a very good horse. I've always thought he was from day one," he told BBC Sport.

606: DEBATE Your views on Frankie's victory

"He's never let me down and has a serious turn of foot. He travels and you can do most things with him.

"Frankie was probably a bit further back than I wanted him to be but Authorized has got so much class."

Authorized went off as the 5-4 market leader, having shown he was a genuine contender for top honours with victory in the Dante Stakes at York.

Dettori's popularity, coupled with the colt's form, meant money poured in for Authorized ahead of Saturday's race and bookmakers had predicted a �20m payout should the pair win.

However, the last odds-on favourite to win the Derby was the legendary Shergar in 1981 and there were some early nerves for Authorized's backers as he sat well off the early pace set by Kid Mambo.

Authorized was 10th of the 17 runners as the field approached the descent to Tattenham Corner but he cruised through the field with two furlongs remaining and a few gentle reminders from his jockey put the race to bed.