Great Britain's women fulfilled their lifelong dream by claiming a stunning team pursuit gold in a blistering world record at London 2012.
Britain have now won four of the five gold medals on offer after three days of track cycling, with five events to come, after Joanna Rowsell, Dani King and Laura Trott clocked three minutes 14.051 seconds to triumph with a sixth consecutive world record in the three-woman, three-kilometre event.
Sarah Hammer, Dotsie Bausch and Jennie Reed of the United States, who finished in 3mins 19.727secs, were in Britain's sights in the final kilometre in a scintillating display from the hosts.
Canada's Tara Whitten, Gillian Carleton and Jasmin Glaesser took bronze in 3:17.915 ahead of Annette Edmondson, Melissa Hoskins and Josephine Tomic of Australia (3:18.096).
Trott told BBC1: "It's mad, I actually can't believe it. I feel dead emotional right now.
"It was my dream - it's been my dream since I was eight and we've just gone and done it."
King paid tribute to her team-mates, saying: "We're like sisters and I couldn't have done it without them. They were absolutely incredible.
"I can't believe we've done it. It's absolutely amazing."
Rowsell felt the roars of the fans provided extra motivation.
"I could tell we were winning by the noise of the crowd," she said. "They were just shouting so loud, that just really spurred us on in that last kilometre."
On their record of setting world records in six consecutive competitive races, Trott added: "Pretty amazing, eh?
"I don't think we expected it. I think here maybe we expected it in one of the rounds but not in every single ride that we did. We just can't believe it really."
King sang along to the national anthem after being presented with her gold, while Rowsell and Trott were content to soak up the sound of the partisan crowd.
After the girls stepped off the podium there was a spine-tingling chorus of Hey Jude, led by McCartney.
"It's unbelievable," Trott added. "We didn't expect a Beatle to be here.
"It's not often that you can say you've waved and blown a kiss at a Beatle."
Trott is omnium world champion and has an opportunity to go for a second gold in the six-discipline event which begins on Monday and finishes on Tuesday's final day of the track programme.
King said: "I'm going to support Laura in the omnium because she's one of my best friends. She'll smash that.
"First of all I'm going to be a team-mate for her and then party hopefully and enjoy it."
