Summer Olympics: What The Stars Are Tweeting...

Kim Kardashian at Valentino's 50th Anniversary on March 27, 2012 (left); Selena Gomez at the 2012 Vanity Fair Oscar Pary on February 26, 2012 (middle); Justin Bieber attends 102.7 KIIS FM's Wango Tango on May 12, 2012 (right) Kim Kardashian at Valentino's 50th Anniversary on March 27, 2012 (left); Selena Gomez at the 2012 Vanity Fair Oscar Pary on February 26, 2012 (middle); Justin Bieber attends 102.7 KIIS FM's Wango Tango on May 12, 2012 (right)

The whole country has been swept up by Olympic fever!

President Obama, Lady Gaga and Justin Bieber were among the many celebrities who Tweeted congratulations to the nation’s Olympic athletes over their recent London wins.

“Congrats to Michael Phelps for breaking the all-time Olympic medal record,” the Commander in Chief Tweeted early Wednesday morning. “You’ve made your country proud. –bo”

The grateful swimmer thanked the President, Tweeting, “Thank you Mr. President!! It’s an honor representing the #USA !! The best country in the world!!”

Also receiving praise from the stars were the women of Team USA’s gymnastics.

“CONGRATS to @McKaylaMaroney @jordynmarie2013 @kyla_ross96 @Aly_Raisman @gabrielledoug on your GOLD MEDAL,” The Biebs Tweeted on Wednesday, along with the hashtag “#BeliebersWinGOLD.”

The girls also received a shout out from Oprah Winfrey, who Tweeted, “WOW ! what a moment. The Fab Five!!!!! #TeamUSA Gymnastics,” while Lady Gaga wrote, “Woohoo! Gold for the ladies! just want to squeeze them! So much talent and beauty. Did u seem all holding hands? There’s no ‘I’ in team.”

Here are some other celebrity Tweets from the Summer Olympics in London…

@justinbieber: heard @FranklinMissy is a fan of mine. now im a fan of hers too. CONGRATS on winning GOLD! #muchlove

at which Missy Franklin replied…

@FranklinMissy: @justinbieber: I just died! Thankyou!

@RainnWilson: Dear England, you are weird./ Plus, Abraham Lincoln was American. Just FYI.

@flo_tweet: The queen acting! Has she ever acted before?So good! And she looked so beautiful in that pink sparkly dress, like slightly cross regal fairy

@selenagomez: #GOUSA Congrats to all the Olympians of 2012!!!

@frank_ocean: David Beckham took a speedboat to the olympics & lit the torch. David Beckham is married to a spice girl. David Beckham doesn’t f*** around.

@KimKardashian: How many Olympians do you think have the Olympic rings as a tattoo? I’m watching swimming & so many people have it!

@SamuelLJackson: Looking like the Poles didn’t get the memo about these US Beachballers! They got their brooms out, bout to SWEEP!

@SamuelLJacksonL: Hey y’all, more Water Polo dopeness!US vs Hungary, HOTTNESS in a shoot out!!

@justinbieber: make sure u guys watch the OLYMPICS…might hear #AllAroundTheWorld and #BELIEVE playing. #veryhonored

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