Below are some of the reactions to the momentous victory from stars both competing in and spectating London 2012:
"@bradwiggins is a true British hero. First the Tour & now Olympic Gold. @chrisfroome great too. A wonderful day for @TeamGB #timetrial."
"If you were unsure as to the brilliance of Bradley Wiggins - he beat JACK BAUER muthaf**kers #wiggo."
"Mr @bradwiggins you are an absolute hero! TDF winner, gold medal winner and Britain's leading medalist ever. Congratulations."
"As if being the 1st British Tour de France winner didn't make enough history, @bradwiggins just won his 7th Olympic medal! GOLD. #proud"
Sir Chris Hoy
"YESSSSSS!! Absolutely delighted for @bradwiggins and @chrisfroome. History made today."
"@bradwiggins Surely will become sir Bradley !! Congratulations."
"Absolutely phenomenal @bradwiggins and @ChrisFroome. Congratulations to you both & well done TeamGB."
"All hail three incredible achievements by Bradley 'Wiggo' Wiggins: TDF, Olympic gold, and making me interested in cycling."
"Wing wheeled Wiggins. @teamGB Our greatest Olympian ever. Huge congrats on another amazing Gold! And great ride from Chris Froome too!"
"Well done Wiggo...delighted with that, someone in sound got so excited you heard me asking about the headline order.. #MicOpen! #2Golds."
"oooh nice just seen that Wiggo's gold moves us ahead of AUS on the table."
Team GB grabbed its first gold medal of the London 2012 Olympic Games earlier today when rowers Helen Glover and Heather Stanning cruised to victory in the women's coxless pairs.
Here's how some of the country's famous faces responded:
"Awesome job Helen and heather!!! Well done!!!"
"First Olympics I've been able to watch and it's gold for GB! Magnificent. What's everyone been moaning about?"
"Go on girls! Congrats Helen and Heather, sooo happy for you! Our 1st gold medalists :)"
"Wow!!!!!! Gold medal for the Womens pair!! Congratulations!!! Amazing result!! #teamGB #rowing #OurGreatestTeam."
Dame Kelly Holmes
"Yeeeeeeeeees!!! Brilliant win won by 2 sec! Helen Glover and Heather Stanning GOLD."
"Helen Glover & Heather Stanning you are heroines. Well done. GOLD FOR GB...It's ok if I'm crying a bit isn't it?"
"Get in we have a GOLD MEDAL!! This proper emotional!! Well done girls!! Deserve it!! Smashed everyone...Singing NATION ANTHEM..... GET INNNNNNN...GO TEAM GB!! Let's get some more now!!!!"
"This is so exciting!!! #GoldWednesday"
"Ha! We always win at Rowing. #Dunkirk...Sitting down, taking grip, and pulling away like mad. What us Brits excel at. #rowing."
"Just got abit emotional then!!! GB women rowing GOLD!!! Fantastic, well done ladies."
"FIRST GOLD MEDAL!!!!! Row row row your boat...."
"First gold, get in!! Congrats to Helen Glover and Heather Stanning. #TeamGB."
"Get in!!!! GOLD for @TeamGB Loving it! :-)."
"Well done Helen Glover & Heather Stanning 4 winning our 1st Gold! Me & the nurses at the hospital were cheering & whooping! Go on the girls!"
"Isn't it great that our 1st Gold came from the female form!!!"
"In honour of us winning GOLD I'm wearing a gold bikini. Well done GB. You're the BOMB!! X x x."
"1st gold of the London Olympics! Well done to our female rowing team! #teamGB."
"Womens rowers take a bow....1st gold medal for team GB!! Cyclists do your thing now!"
"Yaaay!!! #TeamGB #Rowing First Gold of the Games! Well done girls!!"
Tom Parker of The Wanted
"Just got goosebumps watching #TeamGB getting their first Gold in the rowing. Go on girls!!!! X."
Photo gallery - London 2012 Olympics:
Copyright: Martin Rickett/PA Wire/Press Association Images
Leave you own reactions to Team GB's gold medals below!