Snowfall stormed to a breathtaking victory for Aidan O'Brien and Frankie Dettori in the Cazoo Oaks at a wet Epsom.
Last month's Musidora Stakes winner simply blew the opposition away in the final furlong to give Dettori a fifth Oaks triumph and O'Brien his ninth.
Sent off at 11-2, Snowfall had the race won before the furlong marker and crossed the line a record 16 lengths clear of the George Boughey-trained 50-1 chance Mystery Angel in second place.
Divinely (20-1), also trained by O'Brien, was a further length and three-quarters way in third, with Save A Forest (40-1) fourth and the O'Brien-trained 5-2 favourite Santa Barbara only fifth.
Mystery Angel was well away and stayed in the front rank throughout the race. Sherbet Lemon was alongside her in the early stages with La Joconde, Willow, Dubai Fountain and Saffron Beach on their heels.
The field moved over the stands side after turning Tattenham Corner, with Dettori able to steer a clear passage for Snowfall.
Hitting the front two furlongs out, the daughter of Deep Impact continued to put daylight between herself and her rivals to become one of the easiest Oaks winners ever seen.
Afterwards, a delighted Aidan O'Brien said: "We thought she was very good last year, and put her in all the big races.
"David, who rides her every day, has been over the moon with her. Jamie, who's in charge of her, Wayne, who rides her work, they've all been very happy with her.
"She was very impressive at York. She's maybe just got a bit stronger over the winter, and the extra distance - she's out of a full sister to Found as well. So it's an unbelievable pedigree, by Deep Impact.
"We really thought she was a proper Group One filly last year, and kept disappointing. Little things happened to her in races, and stuff like that.
"But she won the Musidora very impressively. You're never sure, but she has a lot of class - when ground turns like that, you can sometimes get extreme distances.
"But Frankie gave her a very good ride - and she looks a very special filly, doesn't she?"
Dettori told ITV Racing: "They went far too quick. I had the luxury to take my goggles off five (furlongs) out, because I couldn't believe it.
"She went through like a hot knife through butter.
Asked if he had ever ridden easier Classic winner, he replied: "No - (but) I'll take it!
"I had everything beat in front. I was afraid of Santa Barbara - (but) when I glanced, it was daylight and I thought 'I'm going now', and she took off."