January 22nd, 2013
09:29 AM ET
After nailing her performance of "My Country, 'Tis of Thee" at the inauguration ceremony on Monday, Clarkson let her fans in on the backstage experience.
"I was incredibly nervous and cold ha!" the original "American Idol" posted of her performance yesterday. "What an honor to be a part of history! Obama's presence was powerful and his words unforgettable. It's a proud day for America!"
Clarkson, 30, got in a few photos with other famous faces, including fellow Texan Beyonce, who was there to sing the national anthem:
And, of course, Mr. President:
(This one didn't make her Twitter feed, but we're still laughing over the picture of former President Bill Clinton photobombing Clarkson.)
Later that night, Clarkson got red-carpet ready in Oscar de la Renta:
To enjoy the festivities with her fiancé, Brandon Blackstock:
And according to Clarkson, the First Lady makes an excellent host.
"Just partied at the White House ....I kid you not, Michelle Obama stood up and got the party started," Clarkson tweeted. "seriously cool First Lady."
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