Sir Chris Hoy has won his sixth Olympic gold medal at London 2012 to surpass Sir Steve Redgrave as the most successful British Olympian of all time.
The Scot was comfortably victorious in the men's keirin final to add to his gold medal team sprint win with Jason Kenny and Philip Hindes win last week and his four golds in Beijing in 2008.
Watched by Princes William and Harry, Princess Anne, Seb Coe, Boris Johnson and a number of other royal and political figures, the Knight of the Realm left his competitors in his wake as he took the lead with two laps to go. He passed the finishing line before punching the air triumphantly.
It was also Team GB's 22nd Olympic gold of these home Games after Laura Trott won her second gold in under a week in the women's omnium.
Hoy celebrates his sixth gold medal
Edinburgh-born Hoy has now taken his overall medal total to seven - leaving him with as many as former track cyclist Bradley Wiggins and one ahead of Redgrave on six.
An elated Hoy told the BBC: "This is just surreal and it's what I always wanted.
"I just wanted to do my bit for the team. You can't express the feeling you have, it's unbelievable, the most amazing feeling.
Britain's most decorated Olympian then all-but-confirmed it was his last Olympic Games.
"This is the perfect end to my Olympics career. I'm 99.9% sure I won't be in Rio [in 2016].
"It gets tough at times. There have been some really difficult moments and to get through them all and succeed here is one of the best feelings i've had."
Victoria Pendleton was unable to end her cycling career with a gold medal after she was beaten by Australian Anna Meares 2-0 in their sprint final.
However Great Britain have now matched the gold medal total of seven which they achieved in Beijing.
And then David Bowie's Heroes, an unofficial anthem of the Olympics for the Brits, fittingly played to herald a great Scot, Briton and Olympian.