When they step out into the Aquatics Centre at today's synchronised swimming final, Jenna Randall and Olivia Federici will make history.
They'll be the first British pair to mix with the world's elite at an Olympic Games since Barcelona in 1992.
The feat is made all the more impressive by the fact Britain only started taking the sport seriously five years ago.
Team GB's Jenna Randall and Olivia Federici finished ninth after the first two rounds, meaning they qualified for the final
Britain are making huge strides in the sport since Biz Price was appointed national performance director in 2007
The Team GB pair are already on course to improve on their performance in the 2011 World Championships in Shanghai
It might possibly be the biggest shock of the Games if they don't triumph.
Russia has totally dominated the sport for more than a decade, winning every duet and team Olympic gold dating back to Sydney in 2000.
But Britain are making huge strides in the sport since Biz Price was appointed national performance director in 2007.
In September of that year a high performance centre was set up at army barracks in Aldershot and central funding allowed the athletes to go full-time.
This has reaped huge rewards over a relatively short space of time.
Britain's synchronised swimmers have benefitted
from a high performance centre whichwas set up at army barracks in
Aldershot and central funding which allowed them to go full-time
Their qualification means they're the first British duo to compete in a final since 1992
Randall and Federici have been roared along by a fiercely patriotic crowd at the Aquatics Centre
Randall is held up above the water by her
partner during their routine. They require endless hours of practice in
the pool to get right
Federici and Randall crane their necks to the
roof of the Aquatics Centre, which was packed with British supporters
cheering them on
They managed second at the 2010 Commonwealth Games in Delhi and last year saw the pair finish 10th in the technical routine at the World Championships in Shanghai.
Ninth place in both the technical and free routines in London has proved enough to book their place in the top 12 nations and advance to the final, where they'll perform to a medley of music by the Chemical Brothers and Ryan Amon.
Randall and Federici may not be ready to contend for medals, but they've already done enough to captivate a home crowd - who have greeted them with raucous cheers every time they've stepped out into the Aquatic Centre.
Going for gold: Russia's Svetlana Romashina and Russia's Natalia Ishchenko are the favourites going into tomorrow's final
Best of the best: The world champions have dominated the sport since 2000
With 98.600 points, the Russians are almost two points clear of their closest rivals, China's Huang Xuechen and Liu Ou
Their costumes suggest otherwise, but the
Russian duo of Natalia Ischchenko and Svetlana Romashina weren't
clowning around in their routine
Speaking after Sunday's first heat,
Randall said: 'Hearing the crowd cheer for us when we were walking out
was fantastic, it gave us that extra little buzz when we were swimming.'
Federici echoed her team-mate's sentiments over the crowd, adding that once the routine starts they are locked in to their routine.
She said: 'We are focused on each other and the music and what we are doing.
'When you start and stop you really feel it, it's good.
'I think sticking to our preparation, we do these routines day-in, day-out.
'We train eight hours a day, we are constantly doing these routines so its ingrained in us and it makes easier for us to just go out and perform.
'It felt like a good swim, but we've got corrections we need to do.'
Federici echoed her team-mate's sentiments over the crowd, adding that once the routine starts they are locked in to their routine.
She said: 'We are focused on each other and the music and what we are doing.
'When you start and stop you really feel it, it's good.
'I think sticking to our preparation, we do these routines day-in, day-out.
'We train eight hours a day, we are constantly doing these routines so its ingrained in us and it makes easier for us to just go out and perform.
'It felt like a good swim, but we've got corrections we need to do.'
Ballestero Carbonell and Andrea Fuentes Fache of Spain currently sit in the bronze medal position
The Spanish pair Ballestero Carbonell and Andrea
Fache Fuentes. Don't worry, the shocked expressions are part of the
routine and not a reaction to the scoreboard
Legs: North Korea's Jang Hyang Mi and Jong Yon Hui didn't do enough to avoid elimination, finishing 16th after the heats
Mary Killman and Mariya Loroleva of the U.S.
perform the routine that helped them squeeze through to the final in the
penultimate place